Question
A man spends 21% and 12% of his monthly salary on rent
and transportation, respectively. Out of the remaining money, he spends 26% on food and 41% on entertainment. If he saves Rs. 3537.60, then find his monthly salary.Solution
Let the monthly salary of the man be Rs. ‘x’. Money spent on rent and transportation = (21 + 12)% of x = Rs. 0.33x Remaining money = (x – 0.33x) = Rs. 0.67x Money spent on food and entertainment = (26 + 41)% of 0.67x = Rs. 0.4489x Remaining money left = 0.67x – 0.4489x = 0.2211x So, 0.2211x = 3537.6 x = Rs. 16000
Train 'P' travels at a speed of 45 km/h and crosses train 'Q' in 15 seconds while moving in opposite directions. Determine the speed of train 'Q' if the...
? = (7.11/2.12) + (10.88/4.09) + (45.12/11.98)
24.99 × 32.05 + ? - 27.01 × 19.97 = 29.99 × 27.98
24.99 × 32.05 + ? - 27.01 × 19.97 = 29.99 × 27.98
- 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 approximate value should come in the place of (?) in the following questions?
9.9 * [? – (4.9 * √576 ÷ 7.80)] = 950.05
(27.08)2 – (14.89)2 – (22.17)2 = ?
( 1000)1/3 × 10.11 × 4.97 ÷ 10.32 =? – 15.022
1649.98 ÷ 15.48 × 8.12 = ? × 8.16
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