Quantitative Aptitude - Arithmetic Ability Questions

In a Δ ABC, DE || BC. D and E lie on AB and AC respectively. If AB = 7 cm and BD = 3cm, then find BC:DE

Find the radius of the circle if the length of its arc is 33 cm whose corresponding central angle is 90° ?

If x + 1x = 3, then x18 + x12 + x6 + 1 value is

For triangle PQR, what is the equation of altitude PS if co­ordinates of P, Q and R are (5,1), (0,­4) and (­2,3) respectively?

If a retailer offers a discount of 28% on the marked price of his goods and thus ends up selling at cost price, what was the % mark up?

If 14.35 - (1.956 - x ) - 83.92 = 3.858 then what is the value of x?

Find the unit digit in the given product (4211)102 x (361)52.

Select the odd word/letters/number/number pair from the given alternatives.