alleryपंक्ती आकार समान वाढतात; पंक्ती 4 मध्ये 19 आहे आणि पंक्ती 10 मध्ये 49 आहे. पंक्ती 15 आकार?
A79
B74
C69
D84
Answer & Solution
Correct answer: B. 74
प्रति पंक्ती वाढ आहे (49 − 19) ÷ 6 = 5, म्हणून पंक्ती 15 मध्ये 49 + 5 × 5 = 74 आहे.
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