Question
Sumit spends 30% of his salary on food items and 30% of
the remaining amount on electricity bill. If Sumit saves Rs. 29400, what is his total salary?Solution
Sol. Let the total salary of Sumit be Rs. x Sumit’s saving = 70% of 70% of x As per the question, Sumit’s saving = 29400 70% of 70% of x = 29400 ⇒ x = 29400*100/70*100/70= 16,000 Sumit’s total salary = Rs. 60,000.
What value should come in the place of (?) in the following questions?
?2 = 240 * √25 + 38 * 5 - 94
? = 6.25% of 240 + 25 2 + 17 2 – 16 × 17
(-251 × 21 × -12) ÷ ? = 158.13
What will come in the place of question mark (?) in the given expression?
(252 + 198) ÷ ? + 126 ÷ 3 = 144 ÷ 2
Simplify the following questions:
(11) 8.5 × (121) 5.5 ÷ (1331) 5.5 = (11) ? Â
...24% of 15% of 500 + 122 = ?2 – (232 ÷ 2)
 Solve: 666/6/3 = ?
139 + 323 – √169 + ? = 450
What will come in the place of question mark (?) in the given expression?
(50 × 6 ÷ 12) × 9 = ?
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