Question
Suman alone can complete a work in 40 days. Pooja is twice
as efficient as Suman. Find the percentage of work completed by Suman and Pooja together in 8 days.Solution
ATQ,
Let the efficiency of Suman = x units/day
Total work = 40x units
Efficiency of Pooja = x Γ 2 = 2x units/day
Work done by Suman and Pooja together in 8 days = (x + 2x) Γ 8 = 24x units
Percentage of work done = (24x / 40x) Γ 100 = 60%


- Find the simplified value of following expression:
0.998 + 0.882 + 0.12 Ravi is 12 years younger than Surya. Ravi's age is 40% of the sum of his and Surya's age. What will be Surya's age 9 years hence?Β
[(β576 Γ β144) Γ· β1296]2 = ? Γ· 3
What will come in the place of question mark (?) in the given expression?
1960 Γ· 8 + 975 Γ· 5 = ?2 - 89
Find the Value of β(-β3+β(3+8β(7+4β3)))?Β
What will come in the place of question mark (?) in the given expression?
{250% of 46 + 16 Γ· (1/5)} Γ· 15 = ? Γ· 3 β 29
75% of 80 + 12% of 600 + 54 = ?