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?

Related Mcqs:

A room is 6 meters 24 centimeters in length and 4 meters 32 centimeters in width. Find the least number of square tiles of equal size required to cover the entire floor of the room?

A. 110 B. 124 C. 96 D. 117...

Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is________?

A. 75 B. 81 C. 85 D. 89...

LCM of 18 and 27 is_________?

A. 85 B. 89 C. 54 D. 91...

The product of two digits number is 2160 and their HCF is 12. The numbers are________?

A. (36,60) B. (12,180) C. (96,25) D. (72,30)...

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______?

A. 700,400 B. 820,360 C. 800,500 D. 820,369...