Number B is 78 of number a, number A: number B=______ If B is 56, a is 56______ ．

Number B is 78 of number a, number A: number B=______ If B is 56, a is 56______ ．

(1) Number b = number a × 78, so number A: number b = 8:7; (2) 56 △ 78 = 64; so the answer is: 8:7, 64

The sum of a and B is 56, where B is 3 / 4 of a, a is (), B is ()
Two fifths of a book is 28 pages, and four fifths of this book is () pages

The sum of a and B is 56, where B is 3 / 4 of a, a is (32), B is (24)
A: 56 / (1 + 3 / 4) = 32 B: 32 * 3 / 4 = 24
Two fifths of a book is 28 pages, and four fifths of this book is (40) pages
Book: 28 / (2 / 5) = 70 pages, 70 * 4 / 7 = 40

The difference between a and B is 56. If the ratio of a and B is 7:3, find B

56÷（7－3）×3＝42

When Party A and Party B increase 56 yuan at the same time, Party A is 7 / 4 of Party B
Ask for B's money

When Party A and Party B increase 56 yuan at the same time, Party A is 7 / 4 of Party B
Ask for B's money
Let B be x yuan
7x/3+56=(7/4)(x+56);
7x/3+56=7x/4+98;
7x/12=42;
x=72;
So B originally 72 yuan
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