4
High Order Thinking Skills (HOTS)
17. A wheel barrow can hold 261 kg. Four
rocks that weigh 6 1/8kg, 8 1/2kg, 43/4 kg and
71/2 kg are
to be loaded into the wheel
barrow. Can the wheel barrow hold all the
four rocks ?
Answers
YES
THE TOTAL WEIGHT OF FOUR ROCKS = 94.375 kg
so, yes
hope this is helpful
Answer:
Capacity of the wheel barrow = 26¼ = 104/4
Total weight of the four rocks = 6⅛ + 8½ + 4¾ + 7½
= 49/8 + 17/2 + 19/4 + 15/2
(1×49) + (4×17) + (2×19) + (4×15)
= ----------------------------------------------
8
49 + 68 + 38 + 60
= ------------------------------
8
215 7
= --------- = 26 ---------
8 8
No, the wheel barrow can't hold all the rocks,
as:
26 ¼ ---------- 26 ⅞
104/4 ---------- 215/8
LCM of 4 and 8 = 8
(2×104) (1×215)
----------- ---------- ----------
8 8
208 < 215
-------- -------- ---------
8 8
Step-by-step explanation:
N.B.: I think it should be 26¼ kg (as in the maths book). So, I did as 26¼.
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