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A two digit number is obtained by either multiplying sum of digits by 8 and adding 1 or by multiplying the difference of the digits by 13 and adding 2. Find the number.

A two digit number is obtained by either multiplying sum of digits by 8 and adding 1 or by multiplying the difference of the digits by 13 and adding 2. Find the number.

Is there any food ingredient that is not obtained either from plants or animals? If yes, from where it is obtained?

Which of these food ingredients is not obtained from either plants or animals?

In a resonace tube experiment, the first resonance is obtained when the level of the water in the tube is at 20 cm from the open end. Resonace will also be obtained when the distance of the water level from the open end is

In a resonance column experiment , the first resonance is obtained when the level of the water in the tube is at 20 cm from the open end . Resonance will also be obtained when the water level is at a distance of