Ans 1:
Class : Class 8
[{(11/4) / (11/6)} / (7/8)] * (7/12) + (5/7) / (9/28)
= {(6/4) / (7/8)} * (7/12) + (20/9)
= (12/7) * (7/12) + (20/9)
= 1 * (20/9)
= 20/9
= 3 2/9
Thus, answer is C
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Ans 1: (Master Answer)
Class : Class 1
(C): Number of stamps Dev has = 108
Number of stamps Dev’s brother has = 3 × 108 = 324
Total number of stamps they both have = 108 + 324 = 432
Ans 2: (Master Answer)
Class : Class 1
(C): Number of stamps Dev has = 108
Number of stamps Dev’s brother has = 3 × 108 = 324
Total number of stamps they both have = 108 + 324 = 432
Ans 3:
Class : Class 3
No. of stamps Dev has = 108No. of stamps His brother has = 108 × 3 324No. of stamps they both have =. 108 324 432So, Answer C is correct
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