Question 3.1:
.........% of 120 is 138.
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2: Ước của 120 là:
{1;2;3;4;5;6;8;10;12;15;20;24;30;40;60;120}
9: x+ (1+2+3+4+...+100) = 5750
x + 5050= 5750
x = 5750 - 5050 = 700
6. Chữ số thứ 215 là 1285
Refer:
1.My father waters this flower every morning.
=> this flower is watered by my father every morning
2.John invited Fiona to his birthday party last night.
=> Fiona was invited to John's birthday party last night
3.Her mother is preparing the dinner in the kitchen.
=> The dinner is being prepared in the kitchen by her mother
4.We should clean our teeth twice a day.
=>Our teeth should be cleaned twice a day
5.Our teachers have explained the English grammar.
The english grammar has been explained by our teachers
6.Some drunk drivers caused the accident in this city.
=> The accident was caused by some drunk drivers in this city
7.Tom will visit his parents next month.
=> Tom's parents will be visited next month
8.The manager didn’t phone the secretary this morning.
=> the secretary wasn't phoned by the manager this morning
9. This dish is brought to me by the waiter
10. These postcards are sent to us by our friends
.........= 115
Because 138 . 100 : 120 = 13800 : 120 = 115
=> Answer is 115
Chú thích: because nghĩa là " vì "
Answer is 115 nghĩa là " Kết quả là 115 "