The HCF for 9/10, 12/25, 18/35, and 21/40 is:
A. 3/5
B. 252/5
C. 3/1400
D. 63/700
Answer:C
The HCF for 9/10, 12/25, 18/35, and 21/40 is:
A. 3/5 B. 252/5 C. 3/1400 D. 63/700
Explanation: H.C.F. required = H.C.F. 9, 12, 18, 21 = 3 L.C.M. 10, 25, 35, 40 1400