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The nine digit number is 785x3678y is divisible by 72, so we can say number also divisible by 8 and 9. 785x3678y is divisible by 8 if last digit three digit 78y is divisible by 8. 78y is divisible by 8 if y = 4 785x36784 is divisible by 9 if the sum of its digit is divisible by 9. => 7 + 8 + 5 + x + 3 + 6 + 7 + 8 + 4 => 48 + x Put x = 6 => 48 + 6 = 54 As we know, 54 is divisible by 9. Now, x – y = 6 - 4 = 2
The difference between the length and breadth of a rectangle is 13 m. If its perimeter is 186 m, then its area is
The length of the rectangle is triple its breadth. If the perimeter of the rectangle is 56 m, then find the area (in m2) of the rectangle.
After increase in sugar prices by 20%, a person is able to buy 2 kg less sugar for Rs. 540. Find the original and increased price of sugar per kg.
...The area of a triangle is 96 cm² and its perimeter is 48 cm. Find the in-radius (radius of the inscribed circle) of the triangle.
