Qhov teeb meem yog hais txog cov hluas nkauj uas xav cleverly faib cov thoob ntawm lawv tus kheej

2024 Tus sau: Malcolm Clapton | [email protected]. Kawg hloov kho: 2023-12-17 03:58

Muaj cov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. Nws yog ib qho tsim nyog yuav tsum faib lawv ncaj ncees rau cov ntxhais, tsis txhob nchuav txhua qhov chaw.

Peb cov phooj ywg xav sib koom 21 lub thoob ntawm lawv tus kheej, ntawm cov uas xya puv cawv rau lub brim, xya yog ib nrab puv thiab xya yog khoob. Yuav ua li cas ua li no yam tsis muaj dej ntws kom txhua tus ntxhais muaj qhov sib npaug ntawm cov cawv thiab ntim khoom? Lub peev xwm ntawm tag nrho cov kegs yog tib yam. Thiab yog: nws cov phooj ywg kuj xav tau cov ntim khoob, yog li qhov zoo yuav tsis ploj.

Cov ntxhais muaj 21 lub thoob tag nrho. Qhov no txhais tau tias txhua tus phooj ywg yuav tsum tau 21 ÷ 3 = 7 ntim. Yog hais tias caws pliav, ces xya puv thiab xya ib nrab ntawm cov thoob yuav ua 7 + 7 × 0.5 = 7 + 3.5 = 10.5 kegs ntawm caw. Qhov no txhais tau tias txhua tus phooj ywg yuav tsum tau 10.5 ÷ 3 = 3.5 kegs ntawm cawv.

Cia peb sau cov kua dej no los ntawm xya puv thiab xya ib nrab ntim ntim uas muaj:

- thawj tus phooj ywg yuav tau txais peb lub thoob thiab ib nrab puv;

- qhov thib ob tseem yuav muaj peb lub ntim puv thiab ib nrab puv;

- qhov thib peb yuav tau txais ib lub thoob tag nrho thiab qhov seem tsib ib nrab puv, tag nrho 5 × 0.5 = 2.5 kegs ntawm caw.

Tam sim no cia peb txiav txim siab seb muaj pes tsawg lub ntim ntim txhua tus phooj ywg yuav muaj. Thawj thiab thib ob twb muaj plaub thoob cawv lawm. Rau qhov xav tau xya daim, lawv yuav tsum tau ntxiv peb qhov khoob. Qhov seem uas tsis muaj cawv yuav tsum muab rau tus phooj ywg thib peb, uas twb muaj rau lub thawv.

Nov yog qhov tshwm sim: thawj thiab thib ob cov ntxhais yuav muaj peb puv, ib nrab puv thiab peb lub thoob khoob, qhov thib peb - ib puv, tsib ib nrab puv thiab ib qho khoob.

Qhia teb Nthuav teb