| Answers & Solutions | | 2 . | | Answer & Explanation Answer : Option C | | Explanation : | | CP of 100 kg of mixture = 1100 – 300 = Rs.800 ∴CP of 1 kg of mixture = $800\over100 $ = Rs.8 By the method of alligation, | | | Answer : Option C | | Explanation : | | CP of 100 kg of mixture = 1100 – 300 = Rs.800 ∴CP of 1 kg of mixture = $800\over100 $ = Rs.8 By the method of alligation, | | | | 3 . | | Answer & Explanation Answer : Option B | | Explanation : | | Total volume = 485 thousand Red =$95\over485 $ × 100 = 19.59% Blue =$105\over485 $ × 100 = 21.65% Orange =$102\over485 $ × 100 = 21.03% Grey =$63\over485 $×100 = 12.99% White =$120\over485 $×100 = 24.74% ≈25% | | | Answer : Option B | | Explanation : | | Total volume = 485 thousand Red =$95\over485 $ × 100 = 19.59% Blue =$105\over485 $ × 100 = 21.65% Orange =$102\over485 $ × 100 = 21.03% Grey =$63\over485 $×100 = 12.99% White =$120\over485 $×100 = 24.74% ≈25% | | | | 4 . | | Answer & Explanation Answer : Option C | | Explanation : | | | | | Answer : Option C | | Explanation : | | | | | | 5 . | | Answer & Explanation Answer : Option D | | Explanation : | | Total sales in 2011 = 202 thousand ∴ Percentage share in total volume =$202\over485 $×100 = 41.64% | | | Answer : Option D | | Explanation : | | Total sales in 2011 = 202 thousand ∴ Percentage share in total volume =$202\over485 $×100 = 41.64% | | | | 6 . | | Answer & Explanation Answer : Option D | | Explanation : | | 98 : 109 | | | Answer : Option D | | Explanation : | | 98 : 109 | | | | 7 . | | Answer & Explanation Answer : Option B | | Explanation : | | When two teachers from each stream are to be included, then number of ways | | | Answer : Option B | | Explanation : | | When two teachers from each stream are to be included, then number of ways | | | | 8 . | | Answer & Explanation Answer : Option D | | Explanation : | | When no teacher from the commerce stream is to be included, then number of ways | | | Answer : Option D | | Explanation : | | When no teacher from the commerce stream is to be included, then number of ways | | | | 9 . | | Answer & Explanation Answer : Option C | | Explanation : | | When any teacher can be included in the committee, the number of ways = 11 × 2 × 3 × 2 × 7 = 924 | | | Answer : Option C | | Explanation : | | When any teacher can be included in the committee, the number of ways = 11 × 2 × 3 × 2 × 7 = 924 | | | | 10 . | | Answer & Explanation Answer : Option D | | Explanation : | | Profit = Loss (Let CP be Rs.x) (SP – CP) = (CP – SP) ∴ 522 – x = x – 378 $\Rightarrow$2x = 900 x = Rs.450 | | | Answer : Option D | | Explanation : | | Profit = Loss (Let CP be Rs.x) (SP – CP) = (CP – SP) ∴ 522 – x = x – 378 $\Rightarrow$2x = 900 x = Rs.450 | | | | | |
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