Directions (Next Five Questions) : In each of these questions, a number series is given. In each series only one number is wrong. Find out the wrong number.
32 16 24 65 210 945 5197.5
Solution is ,
32×1÷2=16
16×3÷2=24
24×5÷2=60
60×7÷2=210
210×9÷2=945
945×11÷2=5197.5
so 65 is wrong
2 8 12 20 30 42 56
4 12 42 196 1005 6066 42511
3601 3602 1803 604 154 36 12
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A and B started a business with an investment of INR 2800/- and INR 5400/- respectively. After 4 months, C joined with INR 4800/-. If the difference between C’s share and A’s share in the annual profit was INR 400/- , what was the total annual profit