Questions by vaibhav

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A perfect square number has four digits, none of which is zero. The digits from left to right have values that are: even, even, odd, even. Find the

asked Jan 18, 2022 in 8th-maths

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Put three different numbers in the circles so that when you add the numbers at the end of each line you always get a perfect square.

asked Jan 18, 2022 in 8th-maths

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A three digit perfect square is such that if it is viewed upside down, the number seen is also a perfect square. What is the number? (Hint: The digits 1, 0 and 8 stay the same when viewed upside down, whereas 9 becomes 6 and 6 becomes 9.) 142. 13 and 31 is a strange pair of numbers such that their squares 169 and 961 are also mirror images of each other. Can you find two other such

asked Jan 18, 2022 in 8th-maths

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Value of S in `1/3 + S =

asked Jan 18, 2022 in 8th-maths

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After 18 years, Swarnim will be 4 times as old as he is now. His present age is

asked Jan 18, 2022 in 8th-maths

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In a 2 digit number, the units place digit is x. If the sum of digits be 9, then the number is (10x –

asked Jan 18, 2022 in 8th-maths

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A and B are together 90 years old. Five years ago A was thrice as old as B was. Hence,the ages of A and B five years back would be (x – 5)years and (85– x) years

asked Jan 18, 2022 in 8th-maths

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In the equation 2x = 4 – x, transposing –x to LHS, we get x =

asked Jan 18, 2022 in 8th-maths

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If numerator is 2 less than denominator of a rational number and when 1 is subtracted from numerator and denominator both, the rational number in its simplest form is `1/2`. What is the rational

asked Jan 18, 2022 in 8th-maths

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In a two digit number, digit in units place is twice the digit in tens place. If 27 is added to it, digits are reversed. Find the

asked Jan 18, 2022 in 8th-maths

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A lady went to a bank with Rs. 1,00,000. She asked the cashier to give her Rs. 500 and Rs. 1,000 currency notes in return. She got 175 currency notes in all. Find the number of each kind of currency

asked Jan 18, 2022 in 8th-maths

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Two adjacent angles of a parallelogram are in the ratio 4:5. Find their

asked Jan 18, 2022 in 8th-maths

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Each interior angle of a polygon is 108°. Find the number of sides of the

asked Jan 18, 2022 in 8th-maths

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Application on the problem strategy RICE is a rhombus. Find x, y, z. Justify your findings. Hence, find the perimeter of the

asked Jan 18, 2022 in 8th-maths

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For which of the following figures, diagonals are perpendicular to each

asked Jan 18, 2022 in 8th-maths

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If the adjacent sides of a parallelogram are equal then parallelogram is

asked Jan 18, 2022 in 8th-maths

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The angles of a quadrilateral are in the ratio 1 : 2 : 3 : 4. The smallest angle

asked Jan 18, 2022 in 8th-maths

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In a parallelogram PQRS, if `/_P = 60°`, then other three angles

asked Jan 18, 2022 in 8th-maths

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The number of sides of a regular polygon whose each interior angle is of 135°

asked Jan 18, 2022 in 8th-maths

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To construct a unique rectangle, the minimum number of measurements required

asked Jan 18, 2022 in 8th-maths

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