40 marks test 8 icse

If A={ x|x is a colour of rainbow} and B={white, red, green} then A intersection B is

• B

• {green }

• {red }

• { green, red}

If universal set, E={ all digits in our number system}, A={ x|x is a prime} and B={ x|x is even} then B-A is

• {4,6,8}

• {0,4,6,8}

• {3,5,7}

• {2}

In a town of 840 persons, 450 persons read hindi, 300 read english and 200 read both. Then the number of person who read neither is

• 180

• 210

• 260

• 290

The percentage of 3:4 is

• 75%

• 50%

• 25%

• 100%

An item marked at Rs. 840 is sold for Rs. 714. The discount % is

• 10%

• 15%

• 20%

• 25%

The cost of article was Rs. 15500 and Rs. 500 was spent on its repairing. If it is sold for a profit of 15%, the selling price of article is

• 16400

• 17400

• 18400

• 19400

If 12 workers can build a wall in 50 hours how many workers will be required to do the same work in 40 hours?

• 10

• 13

• 14

• 15

If cost of 8m cloth is rs. 250 then cost of 5.8m cloth is

• 120

• 181.25

• 198.76

• 455

The sum of -7pq and 2pq is

• -9pq

• 9pq

• 5pq

• -5pq

Factorization form of x^2-17x-38 is

• (x-19)(x+2)

• (x-19)(x-2)

• (x+19)(x+2)

• (x+19)(x-2)