alleryవరుస పరిమాణాలు సమానంగా పెరుగుతాయి; వరుస 4లో 19 మరియు అడ్డు వరుస 10లో 49 ఉంది. అడ్డు వరుస 15 పరిమాణం?
A79
B74
C69
D84
Answer & Solution
Correct answer: B. 74
ప్రతి అడ్డు వరుసకు పెరుగుదల (49 − 19) ÷ 6 = 5, కాబట్టి అడ్డు వరుస 15 49 + 5 × 5 = 74.
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