scratch your brains guys....this is interesting

Nanu's Grandfather's age is a 2 digit number and her father's age is reverse of her grandfather's age. Nanu's age is 4 times the difference in age between her grandfather and her father. What is Nanu's age.

answer 9 years

indeterminate equation, JMO

Find all the possible combinations in which  1000 can be 

divided into two parts so that one may be a multiple of 13 and

the other a multiple of 49. 

indeterminate equation

The librarian observes that one of the first 9 pages and one other page of two digit is missing from a book. The sum of all the pages in the book now is 260. What are the possible combinations of missing pages?

indeterminate equation, JMO

Divide 112 into two parts one of which when divided by 3 leaves remainder 2 and the other divided by 8 leaves a remainder 7.

indeterminate equation, JMO

Find the fractions, having 7 and 11 for their denominators, such that their sum is 1(34/77)

indeterminate equation, JMO

Divide 152 into two parts so that one may be a multiple of 7 and the other a multiple of 12.

indeterminate equation, JMO

Is it possible to have the sum of multiples of 29 and 48 to be equal to 500.
i.e 48m + 29n = 500, where m and n are natural numbers.

indeterminate equation, JMO

Is it possible to have the sum of multiples of 44 and 18 to be equal to 1000.
i.e 44m + 18n = 1000, where m and n are natural numbers.

Indeterminate equation, JMO

Is it possible to have the sum of multiples of 47 and 19 to be equal to 1000.
i.e 47m + 19n = 1000, where m and n are natural numbers.

JMO STD VI

indeterminate equations, JMO

The total age of some 7 years old children and some 5 years old children is 60 years. If a team is to be selected from these children such that their total age is 48 years, then in how many ways can it be done?

indeterminate equation, JMO

Students of a class are made to stand in rows. If 4 students are extra in each 

row, there would be 2 less rows. If 4 students are less in each row, there would 

be 4 more rows. Find the total number of students which satisfies this condition 

if the number of students is less than 100.

indeterminate equation

A man spent Rs 8100 in buying fowls at Rs 250, ducks @ Rs 350 and pheasants @ Rs 400. The number of birds bought was 25. How many were there of each?

indeterminate equation

A man spends Rs 130000 in buying sheep @ Rs 3000 each, and cows @ Rs 17000 each; hoe many of each can he buy?

Indeterminate equations

In how many ways may Rs 1200 be paid in Rs 20 and Rs 10 denomination notes, using both the denomination or only one?