Question
Average weight of all the people in a group is 62 kg. When
two people of weight 68 kg and 82 kg left the group, average weight reduces by 1 kg. Find the number of people in the group now.Solution
Let the number of people initially be 'n'.
So, 62n - 61 × (n - 2) = 68 + 82
Or, 62n - 61n + 122 = 150
Or, n = 28
Required number of people = 28 - 2 = 26
P started a business investing Rs.12000. After 3 months, Q joined her with the capital of Rs.18000. After another 6 months, R joined them with the capit...
Amit, Bittu, and Chinky initiated a business venture with investments in the proportions of 8:10:9, respectively. Their shares of the profit were distri...
Puneet and Malik began a business venture, initially investing their capital in a 4:5 ratio, respectively. After half a year, Puneet decided to withdraw...
P and Q started a business by investing Rs.9000 and Rs.7500 respectively. After 7 months, Q increased his investment by a certain percentage such that a...
Rs. X is invested in a scheme offering 250/4% p.a. for 2 years. The total amount received is Rs. 40,495. If Rs. (X + 3,000) is invested in another schem...
- Amit and Riya started a business by investing in the ratio 6:4 respectively. After 8 months, Karan joined the business, investing an amount equal to the av...
In a business there are two partners ‘P’ and ‘Q’. ‘P’ started the business with the capital of Rs. 28000 and after 3 months ‘Q’ joined h...
A, B and C enter into a partnership with a capital in which A’s contribution is Rs. 10,000. If out of a total profit of Rs. 2000, A gets Rs. 800 a...
P and Q started a business by investing Rs. 14,000 and Rs. 21,000 respectively. p also worked as the active manager and for that he is entitled to recei...
John and Jack entered into a partnership by contributing capital in the ratio of 8:14. After a certain period, Jack withdrew his investment completely....
