Question
P can do a piece of work in 15 days, Q can complete
double the work in 40 days and R can do the work in 20 days. If all of them together earn Rs. 3000, then find the money received by Q.Solution
Time taken by P = 15 days Time taken by Q = 20 days Time taken by R = 20 days Let the total work be 60 units. Pβs one day work = 4 units Qβs one day work = 3 units Rβs one day work = 3 units Amount received by Q = 3000 Γ (3/10) = Rs. 900
Evaluate:
β729 + β49 - β16 + 1/β64
Simplify:

(1/5)(40% of 800 β 120) = ? Γ 5
2/5 of 3/4 of 7/9 of 7200 = ?
`sqrt(5476)` + 40% of 1640 = ? `xx` 4 - 2020
? = (22% of 25% of 60% of 3000) + 21
Determine the simplified value of the given mathematical expression.
(342 β 20% of 5280) = ? Γ· 3
β157464 =?