An electron has a negative charge of −1.6times10−19 C-1.6 \\times 10^{-19} \, C−1.6times10−19C, a fundamental constant in physics.
The number of boys and girls in a school is 200 and 320 respectively. 20% of boys left the school while 40 girls took admission in the school. Find the ...
S allocated 40% of his monthly income for food, followed by 60% of the remaining amount for entertainment, 75% of the remaining for shopping, and the re...
Suyash have total amount of Rs.2600 out of which, he spent 30% on food, 45% of the rest on travelling. Out of remaining amount he spends Rs.561 on misce...
A bowl contains a colony of bacteria. Every hour, the bacteria population doubles, but immediately after doubling, a virus kills 40% of the population. ...
0.5 is what percentage of 20?
If 97% of students are present in a class and 12 students are absent. Find total numbers of student in class?
If 40% of 'P' is 60 less than 30% of 'Q', then find 250% of 'Q', given that (P + Q) = 900.
A company’s revenue increased by 20% in the first year and by 10% in the second year. If the revenue at the beginning of the first year was ₹1,00,00...
A person gets an increment of x% on his monthly salary. Before increment, he use to spend 3x/2% of his income and saves the rest. His new expenditure is...
A student multiplied a number by 2/5 instead of 5/2. What is the percentage error in the calculation?
