Question
Out of her total income, Pooja spent 10% on groceries,
15% on transport and 25% on rent. If she spent 40% of the remaining on entertainment and saved the rest which is Rs. 750, then find her total income.Solution
Let total income of Pooja be Rs. '100x' So, amount left after she spent part of it on groceries, transport and rent = 100x - (0.10 + 0.15 + 0.25) X 100x = Rs. '50x' So, 0.60 X 50x = 750 Or, x = (750/30) = 25 So, total income of Pooja = 100x = 100 X 25 = Rs. 2,500 Hence, option a.
What will come in the place of question mark (?) in the given expression?
(87 + 79) X √9 - 298 = ? + √3600
What will come in the place of question mark (?) in the given expression?
? = 60% of 48% of (20 × 350) + 180
? = 60% of 2500 + 85% of 2000 – 5³
14% of 700 + 15% of 900 + 10% of 160 = ?
30% of 8/5 × 5/7 × 2870 =?
(3500 ÷ √1225) × √(20.25) = ? ÷ 4
36 × 15 + 20% 1250 = ? + 296
Simplify the following expression:
  (525 +175) ² - (525 – 175) ² / (525 × 175)
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