Problems And Solutions Future Intelligence Student Olympiad (3-4 Grades)

FISO

9. Can you solve this?


A) 15
B) 20
C) 26
D) 28


26


10. Find the perimeter?


A) 72cm
B) 74cm
C) 75cm
D) 84cm


72


11. Find the area of this shape?


A) 44
B) 40
C) 50
D) 36


\(|A| = 4×4 =16 cm^2 \)
\(|B| = 2×4 = 8 cm^2\)
\(|C| = 4×5 = 20 cm^2\)

so \(|A|+|B|+|C|=16+8+20=44 cm^2\)


12. Open the lock with the given information.


A) 279
B) 672
C) 679
D) 769


679


13. If 13 is added to four times a number, the result is 61. Find the number?

A) 12
B) 24
C) 32
D) 48


\(13+4x=61\)
\(⇔4x=61-13\)
\(⇔4x=48\)
\(⇔x=12\)


14. There are some rabbits and chickens in a field. Together they have 65 heads and 192 feet. How many rabbits are there?


A) 21
B) 25
C) 28
D) 31


\(R+C=65… (1)\)
\(4R+2C=192\) (bagi 2)
\(2R+C = 96 … (2)\)
eliminasi \((2) – (1)\)
\(2R+C = 96\)
\(R+C=65\)
__________________ –
\(R=31\)


15. How many angles are there?


A) 5
B) 8
C) 12
D) 13


5 + 8 = 13


16. Find the sum of faces and vertices of this figure?


A) 6
B) 10
C) 12
D) 13


6


17. Find the result?


A) 84
B) 90
C) 94
D) 102


94


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