Quantitative Aptitude - Arithmetic Ability Questions

If 25% of X is equal to 40% of Y, then what is the ratio of X and Y?

Average age of 20 students is 21 years. 2 students leave the group and 1 new student joins the group. The average now becomes 20 years. If age of one of the student who left the group is 26 years and the one who joined is 20 years, then what is the age (in years) of the other student who left the group?

Chord AB of a circle when extended meets the tangent to the circle at point P. PT is the tangent touching the circle at point T. If lengths of PT and PB are 6 cm and 4 cm respectively, what is the length of PA?

If N = 1 + 11 + 111 + 1111 + ... +111111111, then what is the sum of the digit's of N?

Determine the value of “s” for which the equation 5x + 35 = 60x + s has infinite number of solutions.

A starts a business, after 6 months B also join him with Rs.4500 and after 2 months of B’s joining C also join them with Rs.4500. If A gets approx. Rs 4900 out of total annual profit of Rs. 10,000 then find the approximate value of initial investment of A.

In a 900 meters race, Sathish beats Kiran by 270 meters and Rahul by 340 meters. By how many meters does Kiran beat Rahul in the same race?

Mr. Kiran sold a bus for Rs. 18700 at a loss of 15%. At what price should the bus be sold to get a profit of 15%?