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31. Yogesh started a business investing Rs. 45000. After 3 months, Pranab joined him with a capital of Rs. 60000. After another 6 months, Atul joined them with a capital of Rs. 90000. At the end of the year, they made a profit of Rs. 20000. What would be Atuls share in it?

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Solution:
Just take care of the months of investment, rest all will be simple.
Yogesh : Pranab : Atul
= 45000 × 12 : 60000 × 9 : 90000 × 3
= 2 : 2 : 1
Atul's share
=Rs20000×15=Rs4000
32. Rahul and Bharti are partners in a business. Rahul contributes 14th capital for 15 months and Bharti received 23 of profit. For how long Bharti money was used.

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Solution:
LetthetotalprofitbeRs.ZBharti'sshare=23ZRahul'sshare=Z23Z=Z3Rahul:Bharti=Z3:23Z=1:2NowletthetotalcapitalbeRsX,andBharticapitalwasusedforYmonths.then,Rahulcapitalwillbe14XandBharticapitalwillbeX14X=3X414X1534XY=12Y=1523=10So,Bharti'smoneywasusedfor10months
33. P and Q started a business investing Rs. 85000 and Rs. 15000 resp. In what ratio the profit earned after 2 years be divided between P and Q respectively.

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Solution:
In this type of question as time frame for both investors is equal then just get the ratio of their investments.
P : Q = 85000 : 15000
= 85 : 15
= 17 : 3
34. A, B and C enter into a partnership investing Rs 35000, Rs 45000 and Rs 55000 resp. The respective share of A,B and C in an annual profit of Rs 40500 are.

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Solution:
A:B:C=35000:45000:55000=7:9:11Nowwearehavingtheratio.togettheshare,firstmaketotalofaboveratio.thengeteachshare.A'sShare=40500727=Rs.10500B'sShare=40500927=Rs.13500C'sShare=405001127=Rs.16500
35. Rahul, Arun and Sumit started a business. Rahul invested 12 part, Arun 13 part and rest of the capital was invested by Sumit. The ratio of their profits will be = ?

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Solution:
Let total capital be Rs. x
Then,Rahul's share=Rs.x2Arun's share=Rs.x3Sumit's share=Rs.[x(x2+x3)]=Rsx6Required ratio=x2:x3:x6=12:13:16=3:2:1
36. 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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Solution:
Ratio of shares=8:12:14=4:6:7Kiara's share=Rs.(578×717)=Rs. 238
37. P, Q and R invested Rs. 45000, Rs. 70000 and Rs. 90000 respectively to start a business. At the end of 2 years, they earned a profit of Rs.164000. What will be Q's share in the profit ?

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Solution:
P:Q:R=45000:70000:90000=9:14:18Q's share=Rs.(164000×1441)=Rs. 56000
38. A working partner gets 20% as his commission of the profit after his commission is paid. If the working partner's commission is Rs. 8000, then what is the total profit in the business ?

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Solution:
Let the total profit = Rs. k
According to the question,
Remaining profit after paying 20% working
Partner's commission = (k - 8000)
(k8000)×20100=8000k=48000 Total profit=Rs. 48000
39. We have to divided a sum of Rs. 13950 among three persons A, B and C. B must get the double of A's share and C must get Rs. 50 less than the double of B's share. The share of A will be ?

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Solution:
Lert the share of A = Rs. x
According to the question,
A:B:CCapitalx:2x:(4x50)(x+2x+4x50)=139507x50=139507x=14000x=2000Share of A=Rs. 2000
40. Prakash, Sachin and Anil started a business jointly investing Rs. 11 lakh, Rs. 16.5 lakh and Rs.8.25 lakh respectively. The profit earned by them in the business at the end of 3 years was Rs. 19.5 lakh. What will be 50% of Anil's share in the profit ?

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Solution:
Ratio of shares=11:16.5:8.25=4:6:3Anil's share=Rs.(19.5×313)=Rs. 4.5 lakhRequired amount=50% of 4.5 lakh=Rs. 2.25 lakh