Question
P alone can finish a piece of work ‘M’ in 9 days
while Q takes 3 days to finish it alone. P, Q and R working together can finish the work ‘N’ which is 12 times of work ‘M’ in 9 days. How long will R take to finish work ‘N’, when working alone?Solution
Let the work ‘M’ = 9 units (LCM of 9 and 3) Efficiency of P = 9/9 = 1 units Efficiency of Q = 9/3 = 3 units Efficiency of P, Q and R = (9 × 12)/9 = 12 units per day Efficiency of R = 12 – (1 + 3) = 8 units per day Time taken by R to finish work ‘N’ = 108/8 = 13.5 days
24.035 × √? = 4607.89 ÷ 11.8259
Find the approximate value of Question mark(?) for given equation.
104.85% of 479.89 – √2400.91 + (71.92 ÷ 6.03) × 24.85 = ?
...{(22.22 2 + 6.06 3 ) ÷ 15.15} × 3.03 = ? – 55.05 × 4.04
3374.89% of 31.80 – 1739.85% of 44.72 = (?2 )% of 1188.13
- 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.)
Solve the given equation for ?. Find the approximate value.
[(49.88% of 320.11) × (34.85% of 460.24)] ÷ √783.94 = ?
?% of 549.83 – 18.05 × 31.96 = 44.94% of 479.84 – 13.98 × 33.13
75.22 of 219.98% + 359.99 ÷ 18.18 = ?
320.98 + 49.99% of (261.09 + 138.98) = ?
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