The simple interest accrued on a sum of certain principal is Rs 1,200 in four years at the rate of 8 p.c.p.a. What would be the simple interest accrued on thrice of that principal at the rate of 6 p.c.p.a. in 3 years ?

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The simple interest accrued on a sum of certain principal is Rs 1,200 in four years at the rate of 8 p.c.p.a. What would be the simple interest accrued on thrice of that principal at the rate of 6 p.c.p.a. in 3 years ?

ARs 2,025

BRs 3,025

CRs 2,250

DRs 2,150

upendra ? undefined

Correct answer is: Rs 2,025

Explanation:

\(Principal = \Large \frac{SI \times 100}{Time \times Rate}\)

\(=\Large \frac{1200 \times 100}{4 \times 8}\)

=Rs.3750

\(\text{New principal }= 3×3750 = Rs.11250\)

\(\text{Therefore, S.I}. = \Large \frac{Principal \times Time \times Rate}{100}\)

\(=\Large \frac{11250 \times 3 \times 6}{100}\)
\(=Rs.2025\)

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The ratio between the angles of a quadrilateral is 3 : 4 : 6 : 5. Two-third of the largest angle of the quadrilateral is equal to the smaller angle of a parallelogram. What is the value of adjacent angle of the parallelogram ?

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The ratio between the angles of a quadrilateral is 3 : 4 : 6 : 5. Two-third of the largest angle of the quadrilateral is equal to the smaller angle of a parallelogram. What is the value of adjacent angle of the parallelogram ?

A$120^°$

B $110^°$

C$100^°$

D $130^°$

Nithin ? Aug 13 '2022 at 12:19

Correct answer is: \(100^°\)

Explanation:

Smaller angle of parallelogram

\(= \frac{6}{18} \times 360 \times \frac{2}{3}\)

\(= 80 ^o\)

\(\text{Adjacent angle of parallelogram = 180°– 80° = 100°}\)

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What profit/loss percent did Ravi earn if he purchased an item of Rs 5,600 and sold it at three-fourth of its cost price ?

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What profit/loss percent did Ravi earn if he purchased an item of Rs 5,600 and sold it at three-fourth of its cost price ?

ALoss of 20 per cent

BGain of 25 per cent

CNeither gain nor loss

DNone of these

Nithin ? Aug 1 '2022 at 8:17

Correct answer is: None of these

Explanation:

 

\(\text{S.P = } \Large 5600 \times \frac{3}{4} \text{ = Rs.4200}\)

\(\text{Loss = 5600 - 4200 = Rs.1400}\)

\(\text{Loss percentage = } \Large \frac{Loss}{Cost\ price} \times 100\)

\(\Large \frac{1400}{5600} \times 100 \text{ = 25%}\)

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A car covers a distance of 540 km in 9 hours. Speed of a train is double the speed of the car. Two-third of the speed of the train is equal of a bike. How much distance will the bike cover in 5 hours ?

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A car covers a distance of 540 km in 9 hours. Speed of a train is double the speed of the car. Two-third of the speed of the train is equal of a bike. How much distance will the bike cover in 5 hours ?

A450 km

B 360 km

C400 km

D 500 km

Akilesh Kharviq ? May 24 '2020 at 8:27

Correct answer is: 400 km

Explanation:

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