2 / 3 is a rational number whereas √2 / √3 is

• Also a rational number

• An irrational number

• Not a number

• Not a number

Greatest number which divides 926 and 2313, leaving 2 and 3 remainders, respectively, is

• 52

• 54

• 67

• 67

A single discount equivalent to a discount series 15% and 5% is

• 32%

• 20%

• 21%

• 21%

By selling a cycle for Rs. 2345, a student loses 19%. His cost price is nearly

• Rs. 4000

• Rs. 5000

• Rs. 3000

• Rs. 3000

Diagonals of a rhombus are 1 meter and 1.5 meter in lengths. The area of the rhombus is

• 0.75 m2

• 1.5 m2

• 1.5 m2

• 1.5 m2

An angle in a semi circle is

• π

• π/4

• π/2

• π/2

In a school for midday meal food is sufficient for 250 students for 33 days, if each student is given 125 gm meals. 80 more students joined the school. If same amount of meal is given to each student, then the food will last for

• 20 days

• 40 days

• 30 days

• 30 days

In a school of 500 students, 102 students can read Hindi and Tamil both, 200 students can read only Hindi. The students who can read Tamil are

• 98

• 402

• 402

• 402

The value of k for which kx+3y-k+3 = 0 and 12x+ky = k, have infinite solutions, is

• 0

• -6

• 6

• 6

Table shows the daily expenditure on food of 25 households in a locality: Rs. 100-150 150-200 200-250 250-300 300-350 Households 4 5 12 2 2
The mean daily expenditure on food is

• Rs. 111

• Rs. 161

• Rs. 211

• Rs. 211