1: One fifth of a is equal to 30% of B, and a is ()% of B 2: If a is 20% of B and B is 20% of C, then C is ()% of A 3: The side length of a square increases by 10%, and its area increases by ()% 4: The length of a rope is 150cm. Liu Xin used 20% of it for the first time and the remaining 20% for the second time, totally () cm? 5: 20-9.83-17% = 6: (1-12.5% x8) X3 / 2 + 4 / 3 = 7:10 / 3x [(75% - 2 points only 1) X5 / 4] = can be simple and easy As an exercise in the mind

1: One fifth of a is equal to 30% of B, and a is ()% of B 2: If a is 20% of B and B is 20% of C, then C is ()% of A 3: The side length of a square increases by 10%, and its area increases by ()% 4: The length of a rope is 150cm. Liu Xin used 20% of it for the first time and the remaining 20% for the second time, totally () cm? 5: 20-9.83-17% = 6: (1-12.5% x8) X3 / 2 + 4 / 3 = 7:10 / 3x [(75% - 2 points only 1) X5 / 4] = can be simple and easy As an exercise in the mind

1: One fifth of the number a is equal to 30% of the number B, and the number a is (150)% of the number B
2: If a is 20% of B and B is 20% of C, then C is (4)% of A
3: The side length of a square increases by 10%, and its area increases by (21)%
4: The length of a rope is 150cm. Liu Xin used 20% of it for the first time and the remaining 20% for the second time, totally (48) cm?
5：20-9.83-17％＝10
6: (1-12.5% x8) 2 / 3 of X3 + 3 / 4 = 8:1
7: 3x out of 10 [(75% - 2 points, 1) 4 out of X5] = 3 / 50

One fifth of number a is equal to one sixth of number B. number B is 10

A = 10 × 1 / 6 divided by 1 / 5
=5 / 3 divided by 1 / 5
= 5/3 × 5
= 25/3

The sum of the numbers a, B and C is three times the number a of 1250, which is equal to two times the number B. the sum of the numbers a, B and C is 10 less than the number A. find the formula of the number a

96902585,
Let a be x, then
x+(3x/2)+(x-10)=1250
X = 360

The number a is a, which is three times less than the number B. it means the formula of the number B
The number a is a, which is less than 3 times of the number B, indicating the formula of the number B

Let B be X
a=3x-b
x=(a+b)/3
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