Study the given pattern carefully and select the number that can replace the question mark (?) in it.
13 26 39
30 42 ?
17 16 15
(13+17) = 30 (26+16) = 42 (39+15) = 54
Allophone is found in which type of soils?
A region with black soil experiences warm climate, while a neighboring region with red soil has comparatively cooler conditions. The reason th...
Which of the following conditions characterizes disguised unemployment?
Ozone depletion is caused by
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