Question
A shopkeeper sells two articles at Rs 840 each. On one
he gains 20% and on the other he loses 20%. Find his total profit or loss.Solution
Let CP₁ be cost price of first article. SP₁ = 840, Profit = 20% 840 = 1.20 × CP₁ CP₁ = 840 / 1.20 = 700 For second article, SP₂ = 840, Loss = 20% ⇒ SP = 0.8 CP₂ 840 = 0.8 × CP₂ CP₂ = 840 / 0.8 = 1,050 Total CP = 700 + 1,050 = 1,750 Total SP = 840 + 840 = 1,680 Net loss = 1,750 − 1,680 = Rs 70 Answer: Loss of Rs 70.
The ratio of age of A and his son is 10:3. If the difference of their ages 8 year ago is 28, then find the sum of ages of A and his son 12 year hence.
There are 6 children in a family. The average age of the children is 14 years. If the present age of their mother and father is added, the average age o...
The sum of ages of organization members (including clerk and managers) is 280 years. The total ages of clerks and managers are in the ratio 2:3 and the ...
Six years ago, the ratio of ages of Alok and Ravi was 7:9, respectively. Eight years hence, the ratio of ages of Rohan and Ravi will be 5:6, respectivel...
The total age of A, B and C five years hence will be 84 years. Find the age of C three years hence, if the present age of A and B is 34 years and 23 yea...
Currently, the average age of individuals 'A' and 'B' is 27 years. If the present ages of 'B' and 'C' maintain a ratio of 10:11, determine the age of 'C...
Five years ago, the average age of a family of four members was 25 years. Six years hence, the ratio of their ages will be 9:7:5:3. Find the a...
Laxman and his grandmother's current average age is 38 years. Four years from now, Laxman's age will be one-third of his grandmother's current age. Dete...
Four years ago, the age of person 'A' was three times the age of person 'B'. Eight years from now, the age of person 'A' will be 24 years more than the...
Present ages of 'M' and 'N' are in ratio 2:3, respectively. If six years hence from now, age of 'M' will be 30% less than that of 'N', then find the rat...
Relevant for Exams:
