Please attempt the above question, timed and then click below to reveal the few second technique leading to the correct answer
Technique © :
HINT: Students / Children! Please realise the fact that the first and last tables in the long rectangular table can seat 7 (1+3+3) and 7 (3+3+1) respectively.
Step 1. Therefore, the number of seats needed after taking away the first and last tables
50 – 7 – 7 = 36 seats
Step 2. Now, since there can be only 6 ( 3 + 3 ) pupils per table seated in the tables between the first and the last tables, the number of tables needed other than the first and the last tables
36 / 6 = 6 tables
Step 3. Therefore, the total number of tables needed to seat 50 pupils
1 + 6 + 1
Answer: 8 tables
Time allowed: 30 seconds
Time taken using the technique: 3 seconds
Time saved = 27 seconds [9/10th (90%) of time allowed by examiner]
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WORK SHEET – Practice question
A rectangular table can seat 6 [1+2+2+1] people. How many of the rectangular tables put together to form a long rectangular table could seat 58 people?
Technique © :
Step 1. =>
Step 2. =>
Step 3. =>
Answer: =>
