Math Olympiad K1_28 on Day:.........Month:..........Year:...........

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Question 1: A black ball weights 6 kilograms while a white ball weights 4 kilograms. How many white balls are needed to put on the box to balance the scale ?

(a) 2, (b) 3, (c) 4, (d) 5

Question 2: A black ball weights 7 kilograms while a white ball weights 2 kilograms. How many white balls are needed to put on the box to balance the scale ?

(a) 7, (b) 3, (c) 6, (d) 5

Question 3: A black ball weights 4 kilograms while a white ball weights 2 kilograms. How many white balls are needed to put on the box to balance the scale?

(a) 7, (b) 3, (c) 6, (d) 5

Question 4: A black ball weights 5 kilograms while a white ball weights 3 kilograms. How many white balls are needed to put on the box to balance the scale?

(a) 2, (b) 3, (c) 4, (d) 5

Question 5: How many clubs are in cell A ?

(a) 16, (b) 18, (c) 20, (d) 21

Question 6: How many clubs are in cell A ?

(a) 16, (b) 18, (c) 20, (d) 21

Question 7: Mulan wrote an 8-page short story for her younger siblings. She started writing on August 28, 2020 and wrote a page each day. When did she wrote the last page of the story

(a) September 4, 2020

(b) September 5, 2020

(c) September 3, 2020

(d) September 2, 2020

Question 8: Mulan wrote an 10-page short story for her younger siblings. She started writing on August 7, 2020 and wrote a page each day. When did she wrote the last page of the story

(a) August 14, 2020

(b) August 16, 2020

(c) August 13, 2020

(d) August 22, 2020

Question 9: Mulan wrote an 12-page short story for her younger siblings. She started writing on August 22, 2020 and wrote two pages each day. When did she wrote the last page of the story

(a) August 27, 2020

(b) August 6, 2020

(c) August 13, 2020

(d) August 22, 2020

Question 10: Mushu was waiting for the bus to arrive. The bus whould have arrived at 6 o'clock. The bus was late and Mushu waited for two hours. What time did the bus arrive?