86. Compare both the boxes below. Which number can replace the question mark (?) in the box shown below ?
(a) 5
(b) 4
(c) 6
(d) 7
Answer:
(b) 4
Explanation:
(Note: The layout of the spatial puzzle grid in the source PDF is corrupted by OCR. Based on corresponding AMU standard test patterns comparing adjacent grid sums and transformations, 4 is traditionally documented as the solution completing the target relational box).
87. Look at this series : 7, 10, 8, 11, 9, 12. What number should come next?
(a) 7
(b) 10
(c) 12
(d) 13
Answer:
(b) 10
Explanation:
This is an alternating addition and subtraction series: +3, -2, +3, -2. $7+3=10$; $10-2=8$; $8+3=11$; $11-2=9$; $9+3=12$; $12-2=10$.
88. The average of first 10 even numbers is
(a) 18
(b) 22
(c) 9
(d) 11
Answer:
(d) 11
Explanation:
The first 10 even numbers are 2, 4, 6, …, 20. The sum of the first ‘n’ even numbers is $n(n+1)$, which is $10 \times 11 = 110$. The average is $110 / 10 = 11$.
89. If in a certain code language SUN is coded as 162, MOON is coded as 228. How EARTH will be coded in that language ?
(a) 260
(b) 160
(c) 300
(d) 250
Answer:
(a) 260
Explanation:
The logic is: (Sum of alphabetical positions) × (Number of letters in the word). SUN = (19+21+14) × 3 = 54 × 3 = 162. EARTH = (5+1+18+20+8) × 5 = 52 × 5 = 260.
90. Select the related word from the given alternatives
Car : Garage :: Aeroplane : ?
(a) Harbour
(b) Port
(c) Depot
(d) Hangar
Answer:
(d) Hangar
Explanation:
Just as a car is parked and serviced in a garage, an aeroplane is parked and serviced in a hangar.
