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Let, number of book and number of pen sold by shopkeeper be 25x and 18x respectively. Number of pencil sold by shopkeeper = 13/6 × 18x = 39x So, 25x × 40 + 18x × 20 + 39x × 10 = 21000 ⇒ 1000x + 360x + 390x = 21000 ⇒ 1750x = 21000 x = 12 Number of pen sold by shopkeeper = 18x = 216
In a group of 104 employees, the ratio of male to female employees is 6:7. The average wage of a male employee is Rs. 45, and the...
Akshay invested Rs. 1650 in two schemes P and Q in the respective ratio of 7:4. Scheme P and Q are offering simple interest at the rate of 8% per annum ...
If sec x - tan x = 1/3, find sec x + tan x:
A man spends 35% of his income on food, 25% on rent, and the remaining amount on other expenses. If he saves ₹9,000, which is 20% of his income, find ...
Two individuals, A and B, started a business by investing ₹7,200 and ₹11,700, respectively. After 20 months, A withdrew his entire investment. At th...
Which of the following software is also known as the end-user program?
31.5 ÷ 1.75 × 6 – 12 = ? + 34
A container holds a mixture of milk and water in a 5:3 ratio. If 16 liters of the mixture is taken out and replaced with 16 liters of water, the ratio o...
A person deposits ₹12,000 in a bank offering a 5% interest rate compounded annually. After 2 years, how much interest will he have earned?
A product is sold at ₹720 after two successive discounts of 10% and 20%. Calculate the marked price of the product.