TOÁN TA 4

he bunny can only go right or down in the direction of the arrow and. So there are all...(1) ways for the rabbit to reach the box with the carrot.

• 758

• 761

• 1343

• 1355

• 66

• 64

• 62

• 60

X + ( X + 1 ) + ( X + 3 ) + ( X + 5 ).......+ ( X + 29) = 897

• 188790

• 188970

• 188097

• 188709

• 30

• 72

• 33

• 42