Ajay’s present age is 1.5 times of Hardik’s present age. If after 4 years, Ajay’s age will be twice of Hardik’s age 4 years ago. What is the sum of the present ages of Ajay and Hardik?

The cost of servicing of a Etios car at one of the Toyota Service Centers is Rs. 400. Manager of service center told that for the second service within a year a customer can avail a 10% discount and further for third and forth servicing the customer can avail 10% discount of the previous amount paid, within a year Further if a customer gets more than 4 services within a year he has to pay just 60% of the servicing charges on these services. Vijay availed 5 services from the same servicing station, What is the total percentage discount fetched by Vijay?

A boat’s speed in still water is 5 kmph. While river is flowing with a speed of 2 kmph and time taken to cover a certain distance upstream is 4 hours more than time taken to cover the same distance downstream. Find the distance?

Out of the three semester examinations, each with a total of 500 marks, a student secured average marks of 45% and 55% in the first and second semester examinations. To have an overall average of 60%, how many marks does the student need to secure in the third semester examination?

An aspirant attempted 12 questions in a competitive exam and secured full marks in all of them. If he obtained 60% in the competitive exam and each questions carry equal marks, then what was the total number of questions in the competitive exam?

x(35 – x) = 124
y(2y + 3) = 90

2x² + 11x + 12 = 0
y² – 14y + 48 = 0

2x² – 3x – 20 = 0
2y² – 18y + 40 = 0

(9 ÷ 2 * 27 ÷ 9)/(18 ÷ 7.5 * 5 ÷ 4)

12 7 9 22 96 ?

(2222.5 – 1680 * 0.75)*1.2 = ?

[(3√8 + √8) x (8√8 + 7√8)] – 98 = ?

572 ÷ 26 * 12 – 200 = (2)^?

350% of ? ÷ 50 + 248 = 591

6561 ÷ (10.8 * 2.5) ÷ 3 = ?

66, 71, 64, 75, 62, ?

(√5 – 2)^2 = ? – √80

x² – 13x + 40 = 0
y² – 8y + 15 = 0

22240 ÷ √? = 34 * 12

The profit earned after selling a book for Rs 1516 is the same as the loss incurred after selling the book for Rs 1112. What is the cost price of the book?