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Q: 24 mango trees, 56 apple trees and 72 orange trees have to be planted in rows such that each row contains the same number of trees of one variety only. Find the minimum number of rows in which the above mentioned trees may be planted.
  • A. 15
  • B. 18
  • C. 17
  • D. 19
Correct Answer: Option D - (Number of total columns  Number of total rows) 8 × 3 8 × 7 8 × 9 8 (3 + 7 + 9) = Total number of trees Total number of rows = 3 + 7 + 9 = 19
D. (Number of total columns  Number of total rows) 8 × 3 8 × 7 8 × 9 8 (3 + 7 + 9) = Total number of trees Total number of rows = 3 + 7 + 9 = 19

Explanations:

(Number of total columns  Number of total rows) 8 × 3 8 × 7 8 × 9 8 (3 + 7 + 9) = Total number of trees Total number of rows = 3 + 7 + 9 = 19