The sum of the digits of a two-digit number is 5. If the digit obtained by increasing the digit in ten’s place by unity is one-eighth of the number, then the number is ………………

There is a group of cows and chickens. If the number of legs was 14 more than twice the number of heads, then the number of cows is ……………

If the ratio of boys to girls in a class is B and the ratio of girls to boys is G, then B+G is ………………

The middle digit of number between 100 and 1000 is zero and the sum of the other digits is 11. If the digits are reversed, the number so formed exceeds the original number by 495, then the number is …………

A labourer was engaged for 30 days on the condition that he will be paid Rs. 35 for each day he works and will be fined Rs. 10 for each day he is absent. If he earned Rs. 735 in total, then the number of days he worked is ……………

For what value of k, the system of equations x + 2y = 3, 5x + ky + 7 = 0 has unique solution ?

The ratio of two numbers is 3 : 8 and their difference is 115. The largest number is …………

The solution of the system of equations 2x + 3y + 5 = 0 and 3x – 2y – 12 = 0 is …………

The pair of equations x = a and y = b graphically represents lines which are

For what value of k, the system of equations kx – y = 2, 6x – 2y – 3 = 0 has infinitely many solutions ?