Question
"A" can finish a task in 36 days, while "B" can
complete it in 45 days. Both start working on the task together, but "A" stops working after "x" days. The entire task is completed in 30 days. Find the value of "x".Solution
Let, total amount of work = 180 units (LCM of 36 and 45) Efficiency of A = 180/36 = 5 units per day Efficiency of B = 180/45 = 4 units per day According to question; 9 Γ x + 4 Γ (30 β x) = 180 Or, 9x β 4x = 180 β 120 Or, 5x = 60 Or, x = 12
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
24.11 Γ 5.98 + 25.03 Γ 3.12 β 34.99 + 96.9 Γ 5.02 =?
A salesman is allowed 32% commission on the total sales by him and a bonus of 3% on the sales over Rs. 15000. If the total earnings of a salesman is Rs....
12.052 + 36.15 Γ 25.45 β 124.15 Γ 15.05 = ? Γ 8.08 β 64.32 Γ 15.98
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
What is the value of "Ο"
25.22 of 359.98% + 499.99 Γ· 25.18 = ?
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
? = 19.89% of (29.89 Γ 12.44) + 9.96 Γ 12.022
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