
Ques:- About the number of pairs which have 16 as their HCF and 136 as their LCM, we can definitely say that
A. Only one such pair exists
B. No such pair exists
C. Only two such pairs exist
D. Many such pairs exist
Ques:- In which ratio must water be mixed with milk costing Rs. 12 per litre to obtain a mixture worth of Rs. 8 per litre?
A. 1 : 2
B. 2 : 1
C. 2 : 3
D. 3 : 2