A. 30/7
B. 30/98
C. 60/147
D. 50/294
Explanation:
Required fraction = L.C.M of 6/7, 5/14, 10/21
= (L.C.M of 6, 5, 10) / (H.C.F of 7, 14, 21) = 30/7
Related Mcqs:
- The denominator of a fraction is 1 less than twice the numerator. If the numerator and denominator are both increased by 1, the fraction becomes 3/5. Find the fraction?
A. 2/3
B. 3/5
C. 4/7
D. 5/9
E. None of these - If the numerator of a fraction is increased by 20% and its denominator is diminished by 25% value of the fraction is 2/15. Find the original fraction.
A. 1/12
B. 1/8
C. 1/6
D. 1/4 - When the numerator of a fraction is decreased by 25% and its denominator is decreased by 20%, the new fraction obtained is 3/4. Find the original fraction?
A. 5/4
B. 4/7
C. 5/6
D. 6/7
E. None of these - If the numerator of a fraction is increased by 140 % and the denominator is increased by 150 % the resultant fraction is 4/15 what is the original fraction?
A. 3/5
B. 5/16
C. 2/9
D. None of these - If the numerator of a fraction is increased by 250 % and the denominator is increased by 400 % the resultant fraction is 7/19. What is the original fraction?
A. 10/19
B. 5/9
C. 9/5
D. 19/7 - The smallest number when increased by ” 1 ” is exactly divisible by 12, 18, 24, 32 and 40 is__________?
A. 1439
B. 1440
C. 1459
D. 1449 - Least perfect square number, exactly divisible by 21, 36 and 56 is_________?
A. 3600
B. 504
C. 441
D. 7056 - A rectangular courtyard 3.78min long and 5.25m broad is to be paved exactly with square tiles all of the same size. The minimum number of such tiles is_________?
A. 430
B. 440
C. 450
D. 460 - Find the greatest 4-digit number exactly divisible by 3, 4 and 5?
A. 9985
B. 9960
C. 9957
D. 9975 - Find the greatest number that exactly divides 35, 91 and 840?
A. 5
B. 6
C. 7
D. 8
