Mathmetics

ISBT Mathmetics for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams

Q11.
Nirmal and Kapil started a business investing Rs. 9000 and Rs. 12000 respectively. After 6 months, Kapil withdrew half of his investment. If after a year, the total profit was Rs. 4600, what was Kapil's share in it ?
1) Rs.1900 2) Rs.2000
3) Rs.2300 4) Rs.2600
5)None of these
Answer : Rs.2300
Explanation :
Nirmal : Kapil = 9000 x 12 : 12000 x 6 + 6000 x 6 = 1 : 1. So, Kapil's share = Rs. (4600 x 1 / 2) = Rs. 2300.
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Q12.
Alok started a business investing Rs. 90000. After 3 months Shabir joined him with a capital of Rs. 120000. If at the end of 2 years, the total profit made by them was Rs. 96000, what will be the difference between their shares ?
1) Rs.7300 2) Rs.8000
3) Rs.20000 4) Rs.24000
5)None of these
Answer : None of these
Explanation :
Alok : Shabir = 90000 x 24 : 120000 x 21 = 6 : 7. 
Difference of their shares = Rs. (96000 x 7 / 13 - 96000 x 6 / 13) = Rs. (96000 / 13) = Rs. 7384.62. 

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Q13.
Jayant opened a shop investing Rs. 30000. They earned a profit of Rs. 54000 after completion of one year. What will be Madhu's share of profit ?

1) Rs.27000 2) Rs.24000
3) Rs.30000 4) Rs.36000
5)None of these
Answer : Rs.30000
Explanation : Jayant : Madhu = 30000 x 12 : 45000 x 10 = 4 : 5. Madhu's share = Rs. (54000 x 5 / 9) = Rs. 30000.
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Q14.
Kavita and Sunita are partners in a business. Kavita invests Rs. 35000 for 8 months and Sunita invests Rs. 42000 for 10 months. Out of a profit of Rs. 31570, Kavita's share is :

1) Rs. 18942 2) Rs. 12628
3) Rs. 9471 4) Rs. 18040
5)None of these
Answer : Rs. 12628
Explanation :
Ratio of their shares = 35000 x 8 : 42000 x 10 = 2 : 3. Kavita's share = Rs. (31570 x 2 / 5) = Rs. 12628. 

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Q15.
Three partners A, B, C invest Rs. 3600, Rs. 4500 and Rs. 54000 respectively in a business. Out of a total profit of Rs. 37500, C's share is :
1) Rs. 12500 2) Rs. 15000
3) Rs. 15500 4) Rs. 10000
5)None of these
Answer : Rs. 15000
Explanation :
A : B : C = 36000 : 45000 : 54000 = 4 : 5 : 6. C's share = Rs. (37500 x 6 / 15) = Rs. 15000.

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