Question
If a nine-digit number 89563x87y is divisible by 72,
then the value of √ (8x -6y) 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 -√ (8x -6y) = √ (8×6 – 6×2) = √ 36 = 6
Which of the following organization launched Supervisory monitoring system “DAKSH”?
What is the purpose of the open-source project 'Flacon' launched by the National Payments Corporation of India (NPCI)?
Which city in Tamil Nadu hosts India’s second AI-powered Gold Loan ATM?
Recently Devasahayam Pillai was in news. Who is he?
...Which state has become the first state to use robotic scavengers to clean manholes?
What is the purpose of the 'Floodwatch' app launched by the Central Water Commission, which provides flood forecasts and risk assessment for different r...
Consider the following statements about Indian Olympic Association (IOA):
1. It is the governing body for the Olympic Movement and the Co...
India's leading innovation and start-up catalyst T-Hub inaugurated the world's largest innovation campus in ______ with an aim to support over 2,000 sta...
What has the Indian Army declared 2024 as, emphasizing its commitment to utilizing technology?
- Which event served as the curtain raiser to International Day of Yoga (IDY) 2025?
Relevant for Exams:
