Question
The average age of 'p' employees in an office is (p - 8)
years. When two managers aged 56 years and 40 years join the office, the average age of all individuals in the office increases by 2 years. Calculate the total number of employees in the office.Solution
ATQ, p × (p – 8) + 56 + 40 = (p + 2)(p – 8 + 2) Or, p2 – 8p + 96 = p2 + 2p – 6p – 12 Or, 96 + 12 = -4p + 8p Or, 4p = 108 Or, p = 27 Required number of employees = 27
13.5% of (100 + ?) = 27
15% of 1800 + 22 = ?Â
`sqrt(7744)` Â Â -Â `sqrt(4761)` +Â `sqrt(8281)` Â +Â `sqrt(5625)` + ? = 1856Â
15% of 360 × 20% of ? = 324
Simplify the following expression:
((32)4 - 1)/33×31× (210+1)
1672 ÷ 19 = ?% of 220
[192 ÷ 6 × 5] ÷ (? + 3) = 20Â
- What will come in place of the question mark (?) in the following questions?
144÷12+18×2=? 140% of 1270 + 60% of 2085 = 1881 + ‘?’% of 287