9 1/( 1+5+7)=7
Mango: 1x7=7 (pieces)
Peaches: 5x7=35 (each)
Papaya: 7x7=49 (pieces)
The tortoise is twice as big as the little tortoise this year. Twenty years ago, the turtle was three times as old as the little turtle. Thirty years ago, the tortoise was five times as old as the little tortoise. How old are the tortoise and the little tortoise?
20/(5-3)= 10 (years old)
Little turtle: 10x4=40 (years old)
Turtle; 40x2=80 (years old)
The kindergarten aunt gave the children four chocolates, and the remaining three, five each, are still four short. Please calculate, how many children does a * * have? How many chocolates are there?
Number of people: (3+4)/(5-4)=7 (people)
Quantity of chocolate: 4x7+3=3 1 (capsules)
There is a clock. It strikes six times at six. If it takes 10 seconds to knock six times, think about it. How many seconds does it take to knock 10 times?
Knock 6 times, with 5 intervals, each interval: 10/5=2 (seconds).
Knock 10, 9 intervals: used: 9x2= 18 (seconds)
A bicycle has two wheels, a tricycle has three wheels, and there are nine bicycles and tricycles in the carport. Xiaowen counted, there are 24 wheels. Do you know how many bicycles and tricycles there are?
Assuming that two wheels are removed from each vehicle, 2x9= 18 wheels are removed.
There are still 24- 18=6 (pieces), and each tricycle still has 1 wheel.
There are six tricycles and bicycles: 9-6=3 (vehicles).
A snail has to climb a 25-cm-long bamboo pole, which requires 3 points for every 5 cm climb, and needs 1 minute for rest. How long does it take to climb from the bottom of the bamboo pole to the top?
25/5=5
3x5= 15 (point)
1x4=4 (minimum)
15+4= 19 (point)