Two numbers are in the ratio 3:4. The product of their HCF and LCM is 2028. Then sum of the number will be
72
86
68
91
An article is sold at 20% profit. If its cost price is increased by 50 and at the same time if its selling price is also increased by 30, the percentage of profit decreased by %,then the cost price is
851
852
850
853
Find the value of K for which equation x - Ky =2, 3x + 2y = -5 , has unique solution.
K
K=
K
K=
A.
K
Given,
Also,
For unique solution:
A can do a work in 6 days. B takes 8 days to complete it. C takes as long as A and B would take working together. How long will it take B and C to complete the work together?
days
4 days
5 days
days