A. 55/601
B. 601/55
C. 11/120
D. 120/11
Explanation:
Let the numbers be a and b.
Then, a + b = 55 and ab = 5 * 120 = 600.
Required sum = 1/a + 1/b = (a + b)/ab = 55/600 = 11/120.
Correct Answer: 11/120 ✔
Last Updated: February 07, 2020
Related MCQs
- Find the least square number which is divisible by 10, 12, 15 and 18?
- Three men start together to travel the same way around a circular track of 11 kilometers in circumference. Their speeds are 4, 5 and 8 kilometers per hour respectively. When will they meet at a starting point?
- Find the least multiple of 13 which when divided by 6, 8 and 12 leaves 5, 7 and 11 as remainders respectively? A. 143 B. 169 C. 260 D. 221
- Find the least number which when divided by 6, 7, 8, 9 and 10 leaves 1, 2, 3, 4 and 5 as remainders respectively, but when divided by 19 leaves no remainder?
- Find the least number which when divide by 2, 3, 4, 5 and 6 leaves 1, 2, 3, 4 and 5 as remainders respectively, but when divided by 7 leaves no remainder?
- A heap of stones can be made up into groups of 21. When made up into groups of 16, 20, 25 and 45 there are 3 stones left in each case. How many stones at least can there be in the heap?
- Find the greatest number of four digits which when divided by 10, 15, 21 and 28 leaves 4, 9, 15 and 22 as remainders respectively?
- Find the least number which when divided by 35 leaves remainder 25, when divided by 25 leaves remainder 15 and when divided by 15 leaves remainder 5?
- What is the least number which when divided by 8, 12, 18 and 24 leaves the remainders 4, 8, 14 and 20 respectively?
- The wheels revolve round a common horizontal axis. They make 15, 20 and 48 revolutions in a minute respectively. Starting with a certain point on the circumference down wards. After what interval of time will they come together in the same position?
- Two numbers 4242 and 2903 when divided by a certain number of three digits, leave the same remainder. Find the number?
- There are four prime numbers written in ascending order of magnitude. The product of the first three is 385 and of the last three is 1001. Find the fourth number?
- There are four prime numbers written in ascending order of magnitude. The product of the first three is 7429 and of the last three is 12673. Find the fourth number?
- How many minimum number’s of whole square slabs are required for paving the floor 12.96 meters long and 3.84 meters side?
- A room is 4 meters 37 cm long and 3 meters 23cm broad. It is required to pave the floor with minimum square slabs. Find the number of slabs required for this purpose?
- Find the size of the largest square slabs which can be paved on the floor of a room 5 meters 44 cm long and 3 meters 74 cm broad?
- A wholesale tea dealer 408 kilograms, 468 kilograms and 516 kilograms of three different qualities of tea. He wants it all to be packed into boxes of equal size without mixing. Find the capacity of the largest possible box?
- A merchant has three different types of milk: 435 liters, 493 liters and 551 liters. Find the least number of casks of equal size required to store all the milk without mixing.
- Find the greatest number which is such that when 697, 909 and 1227 are divided by it, the remainders are all the same?
- Find the greatest number which will divide 25, 73 and 97 as so to leave the same remainder in each case?
- An officer was appointed on maximum daily wages on contract money of Rs. 4956. But on being absent for some days, he was paid only Rs. 3894. For how many days was he absent?
- A man was employed on the promise that he will be paid the highest wages per day. The contract money to be paid was Rs. 1189. Finally he was paid only Rs. 1073. For how many days did he actually work?
- In finding the HCF of two numbers, the last divisor was 41 and the successive quotients, starting from the first, where 2, 4 and 2. The numbers are______?
- Least perfect square number, exactly divisible by 21, 36 and 56 is_________?
- HCF and LCM two numbers are 12 and 396 respectively. If one of the numbers is 36, then the other number is_______?
- Five bells first begin to toll together and then at intervals of 5, 10, 15, 20 and 25 seconds respectively. After what interval of time will they toll again together?
- Find the least number of five digits which is exactly divisible by 12, 15 and 18?
- The smallest number which when divided by 20, 25, 35 and 40 leaves a remainder of 14, 19, 29 and 34 respectively is________?
- A heap of coconuts is divided into groups of 2, 3 and 5 and each time one coconut is left over. The least number of Coconuts in the heap is_______?
- The smallest number when increased by ” 1 ” is exactly divisible by 12, 18, 24, 32 and 40 is__________?
- The least number of five digits that have 144 their HCF is__________?
- The greatest number of four digits that have 144 for their HCF is__________?
- The least number of four digits which is divisible by 4, 6, 8 and 10 is_________?
- The greatest number of five digits which is divisible by 32, 36, 40, 42 and 48 is_________?
- The product of two digits number is 2160 and their HCF is 12. The numbers are________?
- Four bells begin to toll together respectively at the intervals of 8, 10, 12 and 16 seconds. After how many seconds will they toll together again?
- The least number which when diminished by 7 is divisible by 21, 28, 36 and 45 is________?
- The least number which when add 3 to it, completely divided 8, 12 and 18 is_______?
- The least number which when divided by 8, 12 and 16, leave in each remainder 3, is_______?
- The least square number which divides 8, 12 and 18 is________?
- The least number which when divided by 16, 18 and 21, leave the remainder 3, 5 and 8 respectively is__________?
- The product of two numbers is 2025 and their HCF is 15 their LCM is__________?
- Find the H.C.F of 54/9, 3 9/17 and 36/51?
- Find the H.C.F of 204, 1190 and 1445?
- Find the H.C.F of 12, 16, 18 and 24?
- HCF of 3/16, 5/12, 7/8 is__________?
- LCM of 1/3, 5/6, 5/4, 10/7 is_________?
- LCM of 455, 117, 338 is________?
- LCM of 87 and 145 is_______?
- LCM of 18 and 27 is_________?
- LCM of two numbers is 138. But their (Greatest common divisor) GCD is 23. The numbers are in a ratio 1:6. Which is the largest number amongst the two?