Question

10 = x
o, Shriya's present age = x= 10 years.
'herefore, Arjun's present age = 2x = 2 x 10 = 20 years.
EXERCISE 2.4
5
1. Amina thinks of a number and subtracts from it. She multiplies the result by 8. The
2.
result now obtained is 3 times the same number she thought of. What is the number?
2. A positive number is 5 times another number. If 21 is added to both the numbers,
then one of the new numbers becomes twice the other new number. What are the
numbers?
. Sum of the digits of a two-digit number is 9. When we interchange the digits, it is
found that the resulting new number is greater than the original number by 27. Wha
is the two-digit number?
One of the two digits of a two digit number is three times the other digit. If yo
interchange the digits of this two-digit number and add the resulting number tot​

Answer 1

Answer:

20 hope it helps u

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