1221.
Find the fourth proportion to 10, 12, and 15.
(A)
16
(B)
20
(C)
18
(D)
22
1222.
Simplify 8.2 + 2.6 + 3.2 - 4.5 ÷ 0.9 × 1.2.
(A)
8
(B)
6
(C)
4
(D)
10
1223.
Aarav owns a watch worth ₹10,000. He sells it to Bhavin at a profit of 15%. After some days, Bhavin sells it back to Aarav at 15% loss. Find the percentage profit or loss faced by Aarav.
(A)
17.25% loss
(B)
17.25% profit
(C)
18.25% profit
(D)
18.75% loss
1224.
Ashu can row 7.5 km an hour in still water. He finds that it takes four times as much time to row upstream, as it takes to row downstream. The speed of the stream is:
1226.
Arvind works 4 times as fast as Suresh. If Suresh can complete a work in 20 days independently, then find the number of days in which Arvind and Suresh can together finish the work.
(A)
6
(B)
3
(C)
5
(D)
4
1227.
Three boys, on an average, are 25 years old, and their age are in the ratio of 3 : 5 : 7. What is the age of youngest boy?
(A)
12 years
(B)
15 years
(C)
21 years
(D)
24 years
1228.
What is the length of the arc of a circle whose radius is 35 cm and whose arc subtends an angle of 72° at the centre of the circle?
(A)
28 cm
(B)
44 cm
(C)
38 cm
(D)
56 cm
1229.
A 255-m long train is running at a speed of 72 km/h. It crosses a platform of length 745 m in:
(A)
53 seconds
(B)
40 seconds
(C)
50 seconds
(D)
51 seconds
1230.
On account of corona virus, 5% of the population of a village died. Out of the remaining population, 20% fled due to panic. If the present population is 4655, then what was the population of the village before the corona attack?
