The total cost of 2 pencils, 5 erasers, and 7 sharpeners is Rs.30, while 3 pencils and 5 sharpeners cost Rs. 15 more than 6 erasers. By what amount (in Rs.) does the cost of 39 erasers and 1 sharpener exceed the cost of 6 pencils?

If the roots of the equation (x + 1) (x + 9) + 8 = 0 are a and b, then the roots of the equation (x + a) (x + b) -8 = 0 are

A sequence of 4 digits, when considered as a number in base 10 is four times the number it represents in base 6. What is the sum of the digits of the sequence?

Some friends planned to contribute equally to jointly buy a CD player. However, two of them decided to withdraw at the last minute. As a result, each of the others had to shell out one rupee more than what they had planned for. If the price (in Rs.) of the CD player is an integer between 1000 and 1100, find the number of friends who actually contributed?

I assigned a value for n and started the program. If the robot finally came back to O and stopped, what is the total distance that it has covered

For how many value of n in the intervals [1, 60] does the robot cover less than 1000 m, before it stops?

If N = 888…up to 100 digits, what is the remainder when N is divided by 625?

A regular polygon has an even number of sides. If the product of the length of its side and the distance between two opposite sides is ¼ th of its area, find number of sides it has

A natural number n is such that 120 n≤240. If HCF of n and 240 is 1, how many values of n are possible?

The first n natural numbers, 1 to n, have to be arranged in a row from left to right. The n numbers are arranged such that there are an odd number of numbers between any two even numbers as well as between any two odd numbers. If the number of ways in which this can be done is 72, then find the value of n.

Whatmore is from which country?

Who is the person from Australia?

The person from Japan is definitely not coaching

Find the number of cars of brand C sold this year, given that a total of 24 cars of brand A were sold in the previous year.

What is the percentage increase in the total number of cars sold this year when compared to the total number of cars sold in the previous year?