If the sum of two numbers is 55 and the H.C.F and L.C.M of these numbers are 5 and 120 respectively, then the sum of the reciprocal of the numbers is equal to___________?

Problems on L.C.M and H.C.F 26/04/2020

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.

Related Mcqs:

    A drink vendor has 80 liters of Maaza, 144 liters of Pepsi and 368 liters of Sprite. He wants to pack them in cans, so that each can contains the same number of liters of a drink, and doesn’t want to mix any two drinks in a can. What is the least number of cans required?
    A. 35 B. 37 C. 42 D. 30...
    The H.C.F of two numbers is 11 and their L.C.M is 7700. If one of the numbers is 275, then the other is__________?
    A. 279 B. 283 C. 308 D. 318...
    HCF of 3/16, 5/12, 7/8 is__________?
    A. 2/47 B. 3/47 C. 1/48 D. 5/48...
    HCF and LCM two numbers are 12 and 396 respectively. If one of the numbers is 36, then the other number is_______?
    A. 36 B. 66 C. 132 D. 264...
    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?
    A. 1 min B. 2 min C. 3 min D. None...

Leave a Reply

Your email address will not be published. Required fields are marked *