Question
A person sells each package of snacks for Rs. 16 each.
On Monday, he sold 120 packages which was 30 more than that on Tuesday but 25 less than that on Wednesday. If he spends 45% of his income earned by selling snack packages on these 3 days, then find his saving in given 3 daysSolution
Number of packages of snack sold on Monday = 120 Number of packages of snack sold on Tuesday = 120 – 30 = 90 Number of packages of snack sold on Wednesday = 120 + 25 = 145 Therefore, his total income of 3 days = (120 + 90 + 145) × 16 = 355 × 16 = Rs. 5680 Therefore, savings of person in given 3 days = 0.55 × 5680 = Rs. 3124
A body is said to be in equilibrium when:
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Which of the following is a chemical change?
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Fe₂ O₃ + 2Al → Al₂ O₃  + 2Fe
The force which opposes the relative motion between different layers of liquid or gases is called –