Question
A bag contains notes of Rs.10, Rs.20, and Rs.50 in the
ratio of 1:3:5. If the total value of money in the bag is Rs.1920, find the number of Rs.20 notes.Solution
let the notes of Rs 10, 20 and So be a, 3a and 5a respectively Total money in bag = 1920 Acording to question : 10 x a + 20 x 3a + 50 x 5a = 1920 320a = 1920 a = 6 No of Rs 20 notes = 6 x 3 = 18
In a village, number of male, female and children are in the ratio of 3:5:7. If 90% of the males are literate, 80% of females are literate and 40% of ch...
A person 'P' allocates 25% of his monthly salary towards rent. Out of the remaining salary, he spends 40% on food and clothing, saving the rest. His tot...
- In an election between two persons, the winner secured 62% of the total votes and defeated the other by 3,600 votes. How many votes were secured by the per...
A company allowed 9% commission on the total sales made by the salesman and a bonus of 1% on the sales over Rs. 40000. If the salesman deposited Rs. 81...
Monthly savings of X is 60% of his monthly income which is Rs. 9000. If ratio of monthly expenditure of Y and X is 15:8 respectively and monthly savings...
- A number is first increased by 18% and then decreased by 18%. The overall change in number is:
In a college, 70% of the students opted for cultural activities. Among those, 50% participated in music events and the remaining 105 students took part ...
- Sneha spends 30% of her monthly income on groceries and 50% of the remaining on travel. If she saved Rs. 980 after all expenses, then how much money did sh...
- If the price of a commodity is increased by 25% and a person reduces his consumption by 20%, find the percentage change in his expenditure.
In a given years, A sold 1850 caps while B sold 20% more number of caps than A and C sold 5% less number of caps than B. Find the ratio between the numb...