Question

afla cele douo nr a caror suma este 24.iar unul este mai mic decit celalalt de2 ori.de 3 ori de 5 ori dw 7 ori de 11 ori de 23 ori

Answer 1

a + b = 24

b = a :2 => a = 2×b
2×b + b = 24
3×b = 24
b = 8
a = 24-8 = 16

b = a : 3 => a = 3×b
3×b + b = 24
4×b = 24
b = 6
a = 3×6 = 18

b = a : 5 => a = 5×b
5×b + b = 24
6×b = 24
b = 24:6 = 4
a = 5×4 = 20

b = a : 7 => a = 7×b
7×b + b = 24
8×b = 24
b = 24:8 = 3
a = 7×3 = 21

b = a : 11 => a = 11×b
11×b + b = 24
12×b = 24
b = 24:12 = 2
a = 11×2 = 22

b = a : 23 => a = 23×b
23×b + b = 24
24×b = 24
b = 24:24 = 1
a = 23×1 = 23