Samaira, Mahira and Kiara rented a set of DVDs at a rent of Rs. 578. If they used it for 8 hours, 12 hours and 14 hours respectively, what is Kiara's share of rent to be paid ?

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Samaira, Mahira and Kiara rented a set of DVDs at a rent of Rs. 578. If they used it for 8 hours, 12 hours and 14 hours respectively, what is Kiara's share of rent to be paid ?

ARs. 192

BRs. 204

CRs. 215

DRs. 238

Nithin ? Aug 11 '2022 at 21:23

Correct answer is: Rs. 238

Explanation:

\(\eqalign{ & {\text{Ratio of shares}} \cr & = 8:12:14 \cr & = 4:6:7 \cr & \therefore {\text{Kiara's share}} \cr & = {\text{Rs}}{\text{.}}\left( {578 \times \frac{7}{{17}}} \right) \cr & = {\text{Rs. }}{\text{238}} \cr}\)

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Kamlesh bought 65 books for Rs. 1,050 from one shop and 50 books for Rs. 1,020 from another. What is the average price he paid per book ?

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Kamlesh bought 65 books for Rs. 1,050 from one shop and 50 books for Rs. 1,020 from another. What is the average price he paid per book ?

ARs. 36.40

BRs. 18.20

CRs. 24

DNone of these

Nithin K ? Apr 19 '2017 at 23:30

Answer is None of these

Explanation

\(\text{ Required average = } \frac{1050+1020}{65+50}\)

\(= \frac{2070}{115} = Rs. 18\)

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The average of 5 numbers is 306.4. The average of the first two numbers is 431 and the average of the last two numbers is 214.5. What is the third number ?

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The average of 5 numbers is 306.4. The average of the first two numbers is 431 and the average of the last two numbers is 214.5. What is the third number ?

A108

B52

C321

DNone of these

Nithin K ? Apr 19 '2017 at 22:32

Answer is None of these

Explanation:

According to the question,

Sum of five numbers = 5 × 306.4 = 1532

Third number = 1532 - 2 × 431 - 2 × 214.5

                    = 1532 - 862 - 429= 241

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A man takes 6 hours 35 minutes in walking to a certain place and riding back. He would have taken 2 hours less by riding both ways. What would be the time he would take to walk both ways ?

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A man takes 6 hours 35 minutes in walking to a certain place and riding back. He would have taken 2 hours less by riding both ways. What would be the time he would take to walk both ways ?

A 4 hours 35 minutes

B8 hours 35 minutes

C10 hours

D8 hours 25 minutes

ranjith ? Feb 23 '2020 at 21:17

Correct answer is: 8 hours 35 minutes

Explanation:

Time taken in walking one way + riding other way = 6 hours 35 minutes ... (i)

Time taken in riding both ways = 4 hours 35 minutes ...(ii)

By equation (i) × 2 - (ii),

2 × Time taken in walking one way

= 13 hours 10 minutes - 4 hours 35 minutes

= 8 hours 35 minutes

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Fifty six men can complete a piece of work in 24 days. In how many days can 42 men complete the same piece of work ?

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Fifty six men can complete a piece of work in 24 days. In how many days can 42 men complete the same piece of work ?

A18

B32

C98

D48

Akilesh Kharvi ? May 29 '2017 at 9:57

Answer is : 32

Explanation:

\(\therefore\) 56 men can complete 1 work in 24days.

1 man complete the work in 24 × 56 days.

42 men will do the same work in

\(= \frac{24\times56}{42} = \text{ 32 days}\)

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