Free notebooks were distributed equally among children of a class. The number of notebooks each child got was one-eighth of the number of children. Had the number of children been half, each child would have got 16 notebooks. How many notebooks were distributed in all?

Twenty times a positive integer is less than its square by 96. What is the integer?

In how many different ways can the letters of the word ORGANISE be arranged in such a way that all the vowels always come together and all the consonants always come together?

The speed of a car increases by 2 km per hour after every hour. If the distance travelled in the first hours was 35 km, what was the total distance travelled in 12 hours?

Mr Sridharan invested money in two schemes A and B, offering compound interest @ 8 p.c.p.a. and 9 p.c.p.a. respectively. If the total amount of interest accrued through the two schemes together in two years was Rs.4818.30 and the total amount invested was Rs. 27,000. What was the amount invested in Scheme A?

If the digit in the unit’s place of a two-digit number is halved and the digit in the ten’s place is doubled. The number thus obtained equal to the number obtained by interchanging the digits. Which of the following is definitely true?

Salaries of Rajesh and Sunil are in the ratio of 2 : 3. If the salary of each one is increased by Rs. 4000 the new ratio becomes 40 : 57. What is Sunil’s present salary?

In how many different ways can the letters of the word RUMOUR be arranged?

Nikhilesh invested certain amount in three different schemes A, B and C with the rate of interest 10 p.c.p.a., 12 p.c.p.a. and 15 p.c.p.a. respectively. If the total interest accrued in one year was Rs. 3200 and the amount invested in scheme C was 150% of the amount invested in scheme A and 240% of the amount invested in scheme B, what was the amount invested in scheme B?

The numbers of students speaking English and Hindi are in the ratio of 4 : 5. If the number of students speaking English increased by 35% and that speaking Hindi increased by 20%. What would be the new respective ratio?

Following line graph shows sugar produced by India and Cuba during the period of 2001-2006.

What is the percentage decrease in production from 2001 to 2002 for India?

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Following line graph shows sugar produced by India and Cuba during the period of 2001-2006.

What is the average production (in lakh tonnes)of Cuba from 2001 to 2004?

Following line graph shows sugar produced by India and Cuba during the period of 2001-2006.

What is the ratio of the maximum production to average production for India?

What is the difference of total production (in lakh tonnes) of these two countries during 2001-2006?

Following line graph shows sugar produced by India and Cuba during the period of 2001-2006.

For Cuba during which period its production increases maximum from the previous year?