Multiple choice

The average weight of Sopan, Guruprasad and Rima is 65 kg. If the average weight of Sopan and Guruprasad be 67 kg and that of Guruprasad and Rima be 57 kg, then the weight of Guruprasad is

  1. 60 kg

  2. 53 kg

  3. 58 kg

  4. 63 kg
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

S+G+R = 65*3 = 195. S+G = 67*2 = 134. G+R = 57*2 = 114. Adding (S+G) and (G+R) gives S+2G+R = 248. Subtracting (S+G+R) gives G = 248 - 195 = 53.

AI explanation

The total weight of Sopan, Guruprasad, and Rima is 65 multiplied by 3, which equals 195 kg. The sum of the weights of Sopan and Guruprasad is 67 times 2, or 134 kg, and the sum of Guruprasad and Rima is 57 times 2, or 114 kg. Adding these two sums gives 248 kg, and subtracting the combined weight of all three people leaves Guruprasad's weight of 248 minus 195, which is 53 kg.

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