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Start learning 50% faster. Sign in nowSuppose goods cost the dealer Re 1 per kg. He sells for Re 1 what cost him Re 0.99. Gain on Re 0.99 = Re 1- 0.99 = Re 0.01 Gain on Rs. 100 = 0.01 * 100/0.99 = 1.01% Gain% = 1.01% Alternate Method: Gain% = (True weight – False weight) * 100/ False weight = (1000 – 990)*100/990 = 1.01%
108 ÷ ? + 156 ÷ √144 = √64 × 2
8 × 9 + ? – 6 × 11 = 12 × 8
If x + y + 3 = 0, then find the value of x3 + y3 – 9xy + 9.
Simplify the following expression:
(400 +175) ² - (400 – 175) ² / (400 × 175)
? = 6.25% of 240 + 252 + 172 – 16 × 17
1200% of 18 + √1600 + 62 = ?2 + (90 of 0.4)
8 × 25% of ? = 400
222 - 122 + 162 = (?)2 – 29