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Mathematics Mcqs

At the end of three years what will be the compound interest at the rate of 10% p.a. on an amount of Rs.20000?

Compound Interest, Mathematics Mcqs /
At the end of three years what will be the compound interest at the rate of 10% p.a. on an amount of Rs.20000?

A. Rs.6620
B. Rs.6500
C. Rs.6800
D. Rs.6400
Explanation:
A = 20000(11/10)3
= 26620
= 20000
———-
6620

At the end of three years what will be the compound interest at the rate of 10% p.a. on an amount of Rs.20000? Read More »

Compound Interest, Mathematics Mcqs

Rs.8000 become Rs.9261 in a certain interval of time at the rate of 5% per annum of C.I. Find the time?

Compound Interest, Mathematics Mcqs /
Rs.8000 become Rs.9261 in a certain interval of time at the rate of 5% per annum of C.I. Find the time?

A. 4 years
B. 6 years
C. 2 years
D. 3 years
Explanation:
9261 = 8000(21/20)N
(21/20)3 = (21/20)N => N = 3

Rs.8000 become Rs.9261 in a certain interval of time at the rate of 5% per annum of C.I. Find the time? Read More »

Compound Interest, Mathematics Mcqs

If Rs.7500 are borrowed at C.I at the rate of 4% per annum, then after 2 years the amount to be paid is_______?

Compound Interest, Mathematics Mcqs /
If Rs.7500 are borrowed at C.I at the rate of 4% per annum, then after 2 years the amount to be paid is_______?

A. Rs.8082
B. Rs.7800
C. Rs.8100
D. Rs.8112
Explanation:
A = 7500(26/25)2 = 8112

If Rs.7500 are borrowed at C.I at the rate of 4% per annum, then after 2 years the amount to be paid is_______? Read More »

Compound Interest, Mathematics Mcqs

Find the compound interest and the amount on Rs.8000 at 5% per annum for 3 years when C.I is reckoned yearly?

Compound Interest, Mathematics Mcqs /
Find the compound interest and the amount on Rs.8000 at 5% per annum for 3 years when C.I is reckoned yearly?

A. Rs.1261
B. Rs.1440
C. Rs.1185
D. Rs.1346
Explanation:
A = 8000(21/20)3
= 9261
= 8000
———
1261

Find the compound interest and the amount on Rs.8000 at 5% per annum for 3 years when C.I is reckoned yearly? Read More »

Compound Interest, Mathematics Mcqs

A steamer goes downstream from one port to another in 4 hours, it covers the same distance upstream in 5 hours. If the speed of the stream is 2km/hr,the distance between the two parts is_______?

Basic Maths Mcqs, Boats and Streams, Mathematics Mcqs /
A steamer goes downstream from one port to another in 4 hours, it covers the same distance upstream in 5 hours. If the speed of the stream is 2km/hr,the distance between the two parts is_______?

A. 50km
B. 60km
C. 70km
D. 80 km
Explanation:
Let the distance between the two parts be x km.
Then speed downstream = x/4 km/hr.
Speed Upstream = x/5 km/hr
Speed of the stream = ½ (x/4 –x/5)
Therefore, ½(x/4 –x/5) = 2. => x/4 –x/5 = 4 => x = 80.
Hence, the distance between the two ports is 80km.

A steamer goes downstream from one port to another in 4 hours, it covers the same distance upstream in 5 hours. If the speed of the stream is 2km/hr,the distance between the two parts is_______? Read More »

Basic Maths Mcqs, Boats and Streams, Mathematics Mcqs

The speed of a motor boat is that of the current of water as 36:5. The boat goes along with the current in 5 hours 10 min, it will come back in_______?

Basic Maths Mcqs, Boats and Streams, Mathematics Mcqs /
The speed of a motor boat is that of the current of water as 36:5. The boat goes along with the current in 5 hours 10 min, it will come back in_______?

A. 5 hours 50 min
B. 6 hours
C. 6 hours 50 min
D. 12 hours 10 min
Explanation:
Let the speed of motor boat be 36x km/hr and that of current of water be 5x km/hr
Speed downstream = (36x +5x)km/hr = 41x km/hr
Speed upstream = (36 -5x)km/hr = 31x km/hr
Distance covered downstream = (41x × 31/6)km
Distance upstream = [1271x/6 × 1/31x]hrs
= 41/6 hrs = 6hrs 50 min

The speed of a motor boat is that of the current of water as 36:5. The boat goes along with the current in 5 hours 10 min, it will come back in_______? Read More »

Basic Maths Mcqs, Boats and Streams, Mathematics Mcqs

The speed of a boat in still water is 5 km/hr, it can go 30km upstream and return downstream to the original point in 4 hours 30 min. The speed of the stream is_______?

Basic Maths Mcqs, Boats and Streams, Mathematics Mcqs /
The speed of a boat in still water is 5 km/hr, it can go 30km upstream and return downstream to the original point in 4 hours 30 min. The speed of the stream is_______?

A. 5km/hr
B. 8 km/hr
C. 10 km/hr
D. 15 km/hr

The speed of a boat in still water is 5 km/hr, it can go 30km upstream and return downstream to the original point in 4 hours 30 min. The speed of the stream is_______? Read More »

Basic Maths Mcqs, Boats and Streams, Mathematics Mcqs

A boat covers a distance of 30 km in 2 ½ hours running downstream while returning it covers the same distance in 3 ¾ hours. What is the speed of the boat in still water?

Basic Maths Mcqs, Boats and Streams, Mathematics Mcqs /
A boat covers a distance of 30 km in 2 ½ hours running downstream while returning it covers the same distance in 3 ¾ hours. What is the speed of the boat in still water?

A. 8km/hr
B. 12km/hr
C. 14 km/hr
D. 15 km/hr
E. None of these
Explanation:
Speed downstream = (30 x 2/5)km/hr = 12km/hr
Speed upstream = (30 x 4/15) km/hr = 8 km/hr
Speed of boat in still water = ½ (12 + 8)km/hr = 10 km/hr

A boat covers a distance of 30 km in 2 ½ hours running downstream while returning it covers the same distance in 3 ¾ hours. What is the speed of the boat in still water? Read More »

Basic Maths Mcqs, Boats and Streams, Mathematics Mcqs