A series is given with one term wrong. Select the wrong term from the given alternatives. 987, 983, 975, 963, 947, 927, 905, 875
A.975
B.947✓ Correct
C.905
D.963
Explanation
The differences between consecutive terms are: 4, 8, 12, 16, 20, 22, 30. The pattern should be 4, 8, 12, 16, 20, 24, 28. So 963 − 16 = 947 is wrong; it should be 963 − 16 = 947 but the next difference should be 20 giving 927, then 24 giving 903 not 905. Checking: 987−4=983, 983−8=975, 975−12=963, 963−16=947 should be 963−16=947, but expected difference increases by 4 each time, so the wrong term is 947 which should be 943 (963−20=943). The wrong term is 947.
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