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Directions (Q.1-5): Find the wrong number in each of the following series.
Q1. 2, 11, 38, 197, 1172, 8227, 65806
1. 11 2. 38 3. 197 4. 1172 5. None of the above
Q2. 16, 19, 21, 30, 46, 71, 107
1. 19 2. 20 3. 30 4. 46 5. 71
Q3. 4, 2, 3.5, 7.5, 26.25, 118.125
1. 118.125 2. 26.25 3. 3.5 4. 2 5. 7.5
Q4. 16, 4, 2, 1.5, 1.75, 1.875
1. 1.875 2. 1.75 3. 1.5 4. 2 5. 4
Q5. 3, 3, 12, 108, 1730, 42300
1. 108 2. 1730 3. 42300 4. 12 5. None of these
Q6. Solve ((999 + 588)^(2 )- (999 – 588)^2)/(999 × 588)
1. 8 2. 3 3. 2 4. 4 5. None of the above
Q7. (1/5 + 999+ 494/495 × 99 )/4 = ?
1. 25000 2. 24225 3. 24800 4. 24750 5. None of the above
Q8. Find the value of a^3+b^3+c^3-3abc when a=225,b=226,c=227
1. 2304 2. 2430 3. 2034 4. 2340 5. None of the above
Q9. If a^2+b^2=234 and ab = 108, find the value of (a + b)/(a – b).
1. 10 2. 8 3. 5 4. 4 5. None of the above
Q10. 1/(1 × 4)+ 1/(4 × 7)+1/(7 × 10)+1/(10 × 13)+1/(13 × 16)= ?
1. 5/16 2. 3/16 3. 7/16 4. 11/16 5. None of these.
Solution
