Question
If a nine-digit number 89563x87y is divisible by 72,
then the value of √ (5x -4y) will be ∶Solution
Nine-digit number 89563x87y is divisible by 72, so the number is also divisible by 8 and 9. Divisibility law of 8 ⇒ A number divisible by 8 if its last three digits are divisible by 8. Divisibility law of 9 ⇒ A number is divisible by 9 if the sum of its digits is divisible by 9. 87y divisible by 8 if y = 2 Nine-digit number 89563x872 is divisible by 9 if the sum of its digits is divisible by 9. = 8+9+5+6+3+x+8+7+2 =48+x So, putting the value of x= 6 Now -√ (5x -4y) = √ (5×6 – 4×2) = √22.
Grandfather reads the newspaper every day.
In the given questions, choose one correct option that describes the sentence in the most suitable manner. Â
A person appointed by tw...
Select the correct active form of the given sentence.
The owner is constructing a new office next to the old one.
Select the correct passive form of the given sentence.
This institute is offering a new online course in Entrepreneurship.
Select the correct active form of the given sentence .
This beautiful house has been built by Mohan.
Select the correct PASSIVE VOICE form of the given sentence.
The floods destroyed several crops.
- Select the option that expresses the given sentence in active voice.
That beautiful photograph was clicked by Mark.
... Fill in the blanks with the most appropriate word from the options.
It was decided by the farmers that paddy ____________ in their fields next...
Select the correct passive/active form of the given sentence.
The people claim to have seen a good and an excellent officer in the village.
Select the correct active \passive form of the given sentence.
Why does the principal scold the students?Â
Relevant for Exams:
