Vishwas borrowed a total amount of Rs. 30,000 part of it on simple interest, rate of 12 p.c.p.a. and remaining on simple interest rate of 10 p.c.p.a. If at the end of 2 years he paid in all Rs. 36,480 to settle the loan amount, what was the amount borrowed at 12 p.c.p.a.?

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Vishwas borrowed a total amount of Rs. 30,000 part of it on simple interest, rate of 12 p.c.p.a. and remaining on simple interest rate of 10 p.c.p.a. If at the end of 2 years he paid in all Rs. 36,480 to settle the loan amount, what was the amount borrowed at 12 p.c.p.a.?

A Rs. 16000

B Rs. 18000

CRs. 17500

DRs. 12000

upendra ? undefined

Correct answer is: Rs. 12000

Explanation:

Let the sum borrowed at 12% p.a. be Rs. x
and that borrowed at 10% p.a. be Rs. (30000 - x)
S.I. at the end of 2 years
= Rs. (36480 - 30000)
= Rs. 6480

\(\eqalign{ & \therefore \left( {\frac{{x \times 12 \times 2}}{{100}}} \right) + \left[ {\frac{{\left( {30000 - x} \right) \times 10 \times 2}}{{100}}} \right] = 6480 \cr & \Leftrightarrow 24x + 600000 - 20x = 648000 \cr & \Leftrightarrow 4x = 48000 \cr & \Leftrightarrow x = 12000. \cr}\)

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In a college the number of students studying Arts, Commerce and Science are in the ratio of 3 : 5 : 8 respectively. If the number of students studying Arts, Commerce and Science is increased by 20%, 40% and 25% respectively, what will be the new ratio of students in Arts,Commerce and Science respectively?

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In a college the number of students studying Arts, Commerce and Science are in the ratio of 3 : 5 : 8 respectively. If the number of students studying Arts, Commerce and Science is increased by 20%, 40% and 25% respectively, what will be the new ratio of students in Arts,Commerce and Science respectively?

A18 : 35 : 50

B3 : 10 : 10

C4 : 8 : 5

D32 : 35 : 25

Nithin ? Aug 11 '2022 at 21:36

Correct answer is: 18 : 35 : 50

Explanation:

Let the number of students in Arts. Commerce and Science be

3x, 5x and 8x respectively.

On increasing their respective numbers,

Required ratio

\(=\Large 3x \times \frac{12}{100} : 5x \times \frac{140}{100} : 8x \times \frac{125}{100}\)

= 360 : 700 : 1000 = 18 : 35 : 50

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A sum of money is to be divided among four persons in the ratio of 2:3:4:5. Out of the four, one person gets Rs 200 more than the other and Rs 100 less than another. What is the sum ?

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A sum of money is to be divided among four persons in the ratio of 2:3:4:5. Out of the four, one person gets Rs 200 more than the other and Rs 100 less than another. What is the sum ?

ARs 2800

BRs 1400

CRs 4200

DCan’t be determined

nithin ? Aug 11 '2022 at 21:30

Correct answer is: Rs. 1400

Explanation:

From the options,
2x + 3x + 4x + 5x = 1400
=> 14x = 1400  x = 100
shares are : Rs. 200, Rs. 300.
Rs. 400 and Rs. 500.
Hence, total sum = 200 + 300 + 400 + 500
= Rs. 1400

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A boat running downstreams covers a distance of 30 kms in 2 hours. While coming back the boat takes 6 hours to cover the same distance. If the speed of the current is half that of the boat, what is the speed of that boat in kmph ?

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A boat running downstreams covers a distance of 30 kms in 2 hours. While coming back the boat takes 6 hours to cover the same distance. If the speed of the current is half that of the boat, what is the speed of that boat in kmph ?

A15

B5

C10

DCannot be determined

ranjith ? Feb 23 '2020 at 21:31

Correct answer is: 10

Explanation:

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A train travelling at the speed of 60 kmph crosses a platform in 20 seconds. What is the length of the train ?

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A train travelling at the speed of 60 kmph crosses a platform in 20 seconds. What is the length of the train ?

A333 metres

B300 metres

C336 metres

DCannot be determined

ranjith ? Feb 23 '2020 at 21:24

Correct answer is: Cannot be determined

Explanation:

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