Quantitative Aptitude - Arithmetic Ability Questions

The value of tan80° tan10° + sin270° + sin20∘

Wheat costing Rs 30/kg, Rs 35/kg and a third variety of wheat are mixed in the ratio of 3 : 4 : 2. If the mixture is costs Rs 34/kg, then what will be the cost (in Rs/kg) of the third variety of wheat?

Product of digits of a 2-digit number is 24. If we add 45 to the number, the new number obtained is a number formed by interchange of the digits.What is the original number?

Marked price of an item is Rs 900. On purchase of 2 items discount is 6%, on purchase of 3 items discount is 12%. Rajani buys 5 items, what is the effective discount?

Given: 5x -3(2x-7) > 3x - 1 < 7 + 4x; then x can take which of the following values?

If a = 3+23-2, b = 3-23+2 then a2+b2-ab ?

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

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:3 and area of ΔADE is 4 sq cm, what is the area (in sq cm) of quadrilateral BDEC.