86. A motorbike travels 220 km in 5 litres of petrol. How much distance will it cover in 1.5 litres of petrol?
(a) 65 km
(b) 66 km
(c) 67 km
(d) 68 km
Answer:
(b) 66 km
Explanation:
The bike’s mileage is km per litre. In 1.5 litres, it covers km.
87. Select the related word from the given alternatives:
Marathon : Race : : Hibernation :
(a) Sleep
(b) Dream
(c) Bear
(d) Winter
Answer:
(a) Sleep
Explanation:
A marathon is a long, continuous type of race. Hibernation is a long, continuous type of sleep.
88. What number should fill in the blank in the following series: 22, 21, 23, 22, 24, 23, ___
(a) 22
(b) 24
(c) 26
(d) 25
Answer:
(d) 25
Explanation:
The series alternates by subtracting 1, then adding 2: , , , , . The next operation is , so .
89. A bag containing 50 paise, 25 paise and 10 paise coins in the ratio 5 : 9 : 4, amounting to Rs. 206. Find the number of coins of each type respectively:
(a) 360, 160, 200
(b) 160, 360, 200
(c) 200, 360, 160
(d) 200, 160, 360
Answer:
(c) 200, 360, 160
Explanation:
Let the coins be . Their value in rupees is$. Thus, . The coins are , , and .
90. If 15 workers can build a wall in 48 hours, how many workers will be required to do the same work in 30 hours ?
(a) 24
(b) 25
(c) 26
(d) 27
Answer:
(a) 24
Explanation:
This is an inverse proportion calculation: . So, .
