Percent
What percent of the first 20 natural numbers are one-digit numbers?
45%
(56x63x11x15)/(55x21x16x18)
7/4 or 1.75
92+56/(14-x)=100
x=7
If a/b =2, what is the value of 4b/a
2
If the sum of 4 consecutive numbers is 1998, what is the 3rd number?
500
Find the number if 6% of it is 20% of 6.
20
(1-1/2)(1-1/3)(1-1/4)....(1-1/99)(1-1/100)
0.01 or 1/100
(x+8)/2-3=(x+8)/4
x=4
If 5x+6=10, what is the value of 10x+3?
11
xy=4747 and x-y=54. What is x and y?
x=101, y=47
If a=12 and 120% of a is equal to 80% of b, then what is a+b ?
30
81+82+...+99+100
1810
2024/2025 *(2x-3)-2023/2024*(2x-3)=0
x=1.5
For what value of n is |n-1|+1 equal to 0?
There is no such value for n
Find 2 ways to write 11/12 as a sum of three unit fractions.
11/12=1/2+1/3+1/12 or
11/12=1/2+1/4+1/6
if 80% of M is equal to 50% of N, and N is not 0, what is M/N equal to?
1.6
1/(1*2)+1/(2*3)+1/(3*4)+1/(4*5)+...+1/(29*30)
29/30
|x+8|=-|x+8|
x=-8
If 5/x =15/(x+20), what is the value of x/5?
2
54*12*3*1*11=20. Replace * with +,-,x,/. You can use () if needed.
54-12-(3-1)x11=20
What percent of the first 20 natural numbers are prime one-digit numbers?
20%
(1+2/3)(1+2/5)(1+2/7)(1+2/9)...(1+2/n)(1+2/(n+2))
(n+4)/3
(x-3)/5=x-3
x=3
Find (2/5) % of 2000.
8
If the length of the rectangle increased by 20% and its width increased by 50%, then the area is increased by...?
...by 80%