Question
Together, Ali and Imran take 40 days to complete a project.
After working jointly for 32 days, they left, and Zara completed the remaining work in 4 days. How much time would Zara take to complete 70% of the work on her own?Solution
ATQ,
Fraction of work done by Ali and Imran = 32 / 40 = 4/5
Fraction of work done by Zara = 1 - 4/5 = 1/5
So, number of days taken by Zara alone to complete the entire work = 4 ÷ (1/5) = 20 days
So, time taken by Zara to complete 70% of the work = 20 × 0.70 = 14 days
- The commission of a salesperson increased by Rs. 450. If the old commission was 18% less than the new commission, then the old commission was:
The income of 'E' is Rs. 50,000 while the income of 'F' is 20% more than that of 'E'. The ratio of expenditure and savings of 'E' is 2:3, respectively. ...
Meera spends 30% of her income on house rent and then uses 25% of the remaining money on groceries. From what is left, she deposits 40% in her bank. The...
The incomes of Abhinav and Bishnu are in the ratio 4:3, and their savings are in the ratio 3:1. Both spend Rs. 5,000 each. Determine the difference betw...
- Rahul saves 36% of his monthly income. If his monthly income increases by 18.2% while his monthly savings remain the same, find the increase in his monthly...
- Anil distributed some money among Rina, Meena and Tanu. The amounts received by Rina and Meena are in the ratio 5:3 respectively, and the amount received b...
The monthly incomes of Arjun, Rohan, and Sameer are in the ratio of 7:9:8, while their monthly expenditures are in the ratio of 3:4:5. Arjun earns Rs. 2...
- A, B, and C earn a total of Rs. 88,800 per month. A spends 75% of his salary, B spends 70%, and C spends 65%. Their remaining savings are in the ratio 9:10...
The monthly incomes of Ramesh, Suresh, and Dinesh are in the ratio 6:4:5. Their savings are in the ratio 3:2:2. If Suresh saves Rs. 12,000 which is 40% ...
The income ratio between 'P' and 'Q' is 5:4, while their expenditure ratio is 9:7 respectively. If both manage to save Rs. 10,000 each, what is the diff...