" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
U8 = 39
S18 = ?
a+5b = 29
a+7b = 39
2b= 10
b=5
a + 25 = 29
a = 4
S18 = 18/2 (2.4 + 17.5)
S18 = 9 × 93
S18 = 837