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Accumulation of Na+ at high concentrations in the cytoplasm results in deleterious effects on cell metabolism, e.g., on photosynthetic activity in plants.
Sum of digits of a two-digit number is 9. When 27 is subtracted from the number, its digits get reversed. Find the original number.
The ratio between the sum of the digits of a two-digit number and that two-digit number is 1 : 6. If the digit in the unit's place is three less than th...
The number of present boys to girls is in the ratio 2:1. If 15 girls are absent and they form 25% of the total class, and no boy is absent, then find th...
The cost of 3 notebooks and 2 erasers is Rs.47, and the cost of 5 notebooks and 4 erasers is Rs.83. What is the total price (in Rs) of 2 notebooks and 3...
Rs 720 is to be divided among P, Q and R so that P gets 3/5 of Q’s share and R gets 1/3 of P’s share. Share of R is:
What is the largest common divisor of the numbers 1170, 2340, and 3510?
Find the average of the cubes of the first 7 natural numbers.
Find the number of zeroes in the end of 160!