Question
After increase in the price of coffee by 20 %, a person
is able to buy 4 kg less for Rs. 1,440. Find the original and increased price of the coffee per kg.Solution
Let the original price (O.P.) be Rs. x per kg. ∴ New price (N.P.) = 120% of x = Rs. 6x/5 per kg. Quantity of coffee the person could buy at original price = 1440/x kg. Quantity of coffee he can buy at new price = (1440 × 5)/6x = 1200/x kg Given that difference between the quantity at original price and at new price is 3 kg. ∴ 1440/x - 1200/x = 4 ⇒ 240/x = 4 ⇒ = 60 ∴ O.P. = Rs.60 and N.P. = Rs. 6x/5 = (6 × 60)/5 = Rs.72
Seven boxes J, K, L, M, N, O and P are kept one above another such that bottommost box is numbered as 1 while the topmost as 7. Box M is prime numbered ...
Complete the analogy.
49 : 65 :: 64 : ?
Arrange the following vehicles in a logical and meaningful order.
1.Car
2.Train
3.Cycle
4.Truck
5.Auto-rickshaw
What will come in the place of '?' in the following equation, if '+' and '-' are interchanged and ' X ' and '÷' are interchanged?
8 - 6 ÷ 12 + ...
Which letter cluster will replace the question mark (?) to complete the given series?
RJXU, ZANB, ?, PITP, XZJW
Statement:
Some Maths are Physics
Few Physics are not Chemistry
Only English is Chemistry
Conclusion:
I. Some C...
In the following number - pairs, the second number is obtained by applying certain mathematical operations to the first number. In three of the four pai...
Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
11 * 7 * 345 * 5 * 31 ...
Select the correct option that indicates the arrangement of the following words in a logical and meaningful order.
1. Word
2. Paragraph
Relevant for Exams:
